{deletions} [indicators]
Across
1 FREE AND EASY – Anagram [misconstrued] of NEED A REF SAY. Def: casual
9 RIDGE – {part}RIDGE (bird). Def: narrow hilltop
10 TORNADO – TO, RN (sailors- Royal Navy), ADO (trouble). Def: storm
11 STRANGLER – L (left) inside [in grip of] STRANGER (alien). Def: murderous type
13 LOT – Definition: fate, and a cryptic reference to LOT, a character in Genesis whose wife was turned to a pillar of salt during the destruction of Sodom and Gomorrah .
14 STROLL – S (son), TROLL (internet pest). Def: ramble
16 AVOWED – {h}AVO{c}, WED (married). Def: declared. ‘Endless’ on this occasion requires us to remove both first and last letters of ‘havoc’, more usually it just means the last letter has to go.
17 TOO – Sounds like “two” (couple). Def: as well
18 YARDSTICK – YARD (detectives, STICK (put up with). Def: standard of comparison
21 ESTUARY – Anagram [turbulence] of TAY SURE. Def: river mouth
23 TOAST – Double cryptic definition: (i) beans could be served on it, (ii) it may be proposed
24 OPEN VERDICT – O (old), PEN (writer), VERDI (composer), CT (court). Def: judgement
Down
2 RADAR – A straight definition: detection system. ‘That comes up just the same’ indicates the answer is a palindrome.
3 ETERNALLY – E (English), TERN (seabird), ALLY (friend). Def: for ever
4 NATAL – Two definitions: (i) connected with birth, (ii) former S African province
5 ERR – {renounc}E, RR (rights). Def: slip up
6 SWALLOW – SALLOW (yellowish) encloses [outside] W (with). Def: migrating bird
7 IRISH SETTER – IRISH (from Co Mayo, perhaps), SETTER (crossword compiler). Def: barker
8 NORTH DAKOTA – Anagram [quirky] of ART TO HAND OK. Biffers beware not to put ‘South’! Def: US state.
12 REVISITED – REV (padre), I (one), SITED (in position). Def: again called
15 ROOFTOP – F{ound} inside anagram of OPORTO. There’s no anagram indicator as such here, but ‘parts of’ tells us the letters of OPORTO are to be used in the answer. Def: building cover
19 RHYME – R{ecalling}, HY (Henry), ME (yours truly). Def: verse
20 ISAAC – ISA (savings scheme – Individual Savings Account), CA (accountant – Chartered Accountant) reversed [set up]. Def: Abraham’s son – more Old Testament stuff!
22 AWN – AN (article) encloses [about] W (wife]. Def: bristle – it’s the beardy bit on barley, oats and other grasses.
Thanks for stepping in jackkt.