This was a very pleasant puzzle of average complexity. It included a memory jog for Saturday Morning Pictures and the cowboy films starring Roy Rogers, Tom Mix, etc. Those were the days!
In the clues, definitions are underlined. Wordplay explanation is followed by very helpful comments.
ACROSS
1 Extremist in bizarre rituals is thrown out (5)
ULTRA: (rituals – is)*;
5 Pleased to keep one favoured cereal ingredient (7)
GLIADIN: GL(I)AD-IN; a protein in gluten;
11 Your setter finally tails off? The reverse, lots on offer here (8)
SALEROOM: MOORE(y)-LAS(t);
12 Matrix ducks accommodating extreme Brazilian state (10, two words)
MATO,GROSSO: MAT-O(GROSS)O;
13 Dislike days without a course of action ending in victory (8)
DYSPATHY: D(a)YS-PATH-(victor)Y;
16 Sheep shelter from sun on hill (5)
STELL: S-TELL; S=sun; hill=TELL;
17 Very good old van for youngster or banger from the Gorbals? (4)
PIOY: PI-O-Y(oungster); a firework in Fife;
18 Two notes on long, decorative braid (8)
SOUTACHE: SO-UT-ACHE;
19 Seattle plant succeeded with present and former President (8)
SNOWBUSH: S-NOW-BUSH;
21 Flies back for boring thing in Scotland (4)
STOB: BOTS reversed;
23 Perfume ingredient: get it in Middle Eastern state, no question (5)
ATTAR: (Q)AT(‘T)AR;
26 Spring roll said to be refined (8)
WELLBRED: WELL-sounds like “bread”;
27 Heraldic animals formerly seen in French city square (10)
LIONCELLES: LI(ONCE)LLE-S;
28 Weapon’s protective covering whitish as mentioned (8)
ARMALITE: sounds like “armour”-“light”;
29 Wyn, once a gorgeous lady is Sorbian (7)
WENDISH: WEN-DISH; WEN= old word for wyn;
30 Fox TV’s latest: 9/11 vacuously presented (5)
VIXEN: (t)V-IX-E(leve)N;
DOWN
1 Clapped-out like a brolly (6)
USED-UP: USED-UP;
2 Seasons in the case of Blackpool: rainy or windy! (12)
LABYRINTHINE: (in the bl rainy)*; bl from B(lackpoo)L;
3 Highland forecaster upset by cuts (5)
REAPS: SPAER reversed;
4 Article about large Mediterranean units (5)
ARTAL: ART-A-L; unit of weight, see rotl in Chambers;
6 Record gambling game in cabin (8)
LOG-HOUSE: LOG-HOUSE; Bingo was once known as HOUSE;
7 Insectivore not popular in a south-eastern state (6)
AGOUTA: AG(OUT)A;
8 Short written treatise on area not special for examiner (9)
DISSECTOR: DISS-(s)ECTOR;
9 Is the outline styled as such? (12, two words)
IN, SILHOUETTE: (is the outline)*; nice clue;
10 Head, / one ending in the soup (6)
NOODLE: two meanings;
14 Film unhappy defeat (9, two words)
SHOOT, DOWN: SHOOT-DOWN;
15 University in turn mocks sexual disease? Supposedly (8)
GOUJEERS: GO-U-JEERS; Waggle-Dagger for VD;
19 Quite filling spread with pasty (6)
SALLOW: S(ALL)OW;
20 Rod reportedly became pale (6)
WANNED: sounds like “wand”;
22 Outlaws second-class guys seeking publicity (6)
BADMEN: B-ADMEN; Jack Palance, Lee Marvin, the ones with the black hats whilst Roy Rogers et al wore white
24 Irishman who’s learned nothing lost office (5)
OLLAV: O-L-LAV; office=slang for toilet; I don’t understand “lost” = L
25 Honour given to lecturer, one showing marks on script (5)
OBELI: OBE-L-I;
I think L for Lost is OK: in any footy team’s recent history chart, it’s matches Won Lost Drawn, so Spurs’ last 6 in all matches reads WLWDWL.
Edited at 2018-10-14 07:42 am (UTC)
As to “it”, “‘t” is an abbreviation of “it” (see Chambers) so there is no “i” to lose
Edited at 2018-10-15 04:04 am (UTC)