No 13231, Monday 27 Apr 2021, Afterdark

Solution to 3D has been deliberately left unsolved and is to be answered only by a non-regular / novice commenter, with proper annotation. Those who have answered earlier in the week, please give others a chance.

ACROSS

8   So, in the absence of chief non-profit group gets a plant (6) ERYNGO {vERY}{NGO}

9   Roots of perhaps edible annual plant (3) PEA Acrostic

10 Swim with river fish (4) REEL {R}{EEL}

11 Great thought to change sides (10) CELEBRATED CE(-r+l)LEBRATED

12 Some drink alcohol from tap (4) DRUM {Drink}{RUM} Defintion not clear See comments

13 Pouring rain, getting cold halfway — much needed in summer (6) AIRCON {RAIN+COld}*

16 Evangelist had quiet call with engineer (8) PREACHER {P}{REACH}{ER}

17 See and tie hair perhaps (7) EYELASH {EYE}{LASH}

18 Cool engineer’s never ending force is the reason for titanic to crash? (7) ICEBERG {ICE}{BE}{n..eR}{G}

22 Chap removed from act by necessity (8) PERFORCE PERFORmanCE

25 Jacket for cigarette? (6) REEFER [DD]

26 Star caught in inferno, vaulting (4) NOVA [T]

27 Loathsome person almost at jail insisting primarily for pasta, perhaps (10) VERMICELLI {VERMIn}{CELL}{In...g}

30 One small lake primarily engulfing this land? (4) ISLE {1}{S}{L}{En...g} Semi&lit

31 Compete against one, lose at last (3) VIE {V}{1}{losE}

32 Out of the country, on plane republican moves two places ahead (6) ABROAD AB(+r)ROA(-r)D

DOWN

1   Release when king takes charge (4) FREE {F{R}EE}

2   Bet animal is cut in half (4) ANTE ANTElope

3   A pole perhaps calls outside and cries (8) RO?R?N?S (Addendum - ROARINGS {R{OAR}INGS} - See comments)

4   Happiest reunion out of school ends in commemoration (7) EPITAPH HAPPIEsT*

5   Rock and roll, primarily dance, leap with energy (6) WADDLE {WAD}{Dance}{Leap}{E}

6   Electric current on wire carrying unit of energy is removable (10) ERADICABLE {E}{RAD}{I}{CABLE}

7   Relative to nine has support, reportedly you and me (6) LEGUME {LEG}{U}{ME}

14 Chilly but sticky, knight walks out (3) ICY stICkY How is S deleted?

15 Shelters for young plants are farce, molds forming (4,6) COLD FRAMES*

19 Jacket and cigar replaced (8) CARDIGAN*

20 Against leaving very rotten bread (3) RYE vERY*

21 Dog to retire — will take some rest (7) TERRIER {RETIRE}*{Rest}

23 Self-centred person, say, gets nothing first (6) EGOIST {EG}{0}{1ST}

24 To experience again, changing sides for comfort (6) REVIVE Anno pending

28 Priest in Zaire disheartened, sad (4) EZRA ZAiRE*

29 Rich soil in Sao Paulo? Amazing (4) LOAM [T]

Reference List

River = R, Quiet = P, Engineer = ER, BE, Force = G, Small = S, Lake = L, Against = V, Republican = R, King = R, School = S, Energy = E, Electric = E,  Knight = KT