Click HERE to download a printable PDF of this puzzle.

ACROSS

 1 Conflict resolution technique takes time and reflection (10)

 6 An elderly relative’s weight (4)

10 Lindbergh and Gardner protecting one rocky summit (7)

11 Terrifying start to fierce vocal outpouring (7)

12 Herb belonging to thee and me (5)

13 What centaurs are inhabiting, beside a place to live (9)

14 Officer nearly turns around in front of one buying cocktail (11)

16 and 17 For example, Kosman and Picciotto™ (6)

17 See 16

18 Name from a mountainous region is echoing (11)

21 Lance and 6 snort wildly (9)

23 Lawyer committed to help Coke and Pepsi (5)

25 “Hallelujah,” unfortunately, has no N before A (7)

26 Guerrilla revolution’s retreat smuggles in general (7)

27 Ed leaves a deficit for sporting arena (4)

28 Average fate limits ruler in area where lines are drawn (7,3)

DOWN

 1 Signified substance containing nitrogen (5)

 2 Where to get cheese that’s initially dark and light, with much mass (5,4)

 3 Mrs. Dalloway, or just Mrs. (5)

 4 Rent a party in a whirlwind (7)

 5 Exit operating room, grabbing very loud concert equipment (3-4)

 7 Qatari fled, carrying a gun (5)

 8 Hormone improved no ailment (9)

 9 One joining untamed bear, cat, and tiny creatures (8)

14 Don Drysdale originally followed a game with a priest (9)

15 Some Greeks practice fighting with whips (8)

16 Hawaii road crossing path: You should avoid it (5,4)

19 Proportional pay, at its core, supporting someone who sings for money?
(3,4)

20 Nautical record’s appearance outside fetid bog (7)

22 Builder’s mother and child (5)

23 Writer’s mug… (5)

24 …topples over when eating large ice-cream treat (5)

SOLUTION TO PUZZLE NO. 3370

1 REDUC (anag.) + E 4 “a patchy” 10 PHY(SIC)IAN (any hip anag.) 11 MIMI + C 12 anag. 13 “stoop if I’d” 14 [r]INGO + OD’S + PIR(I)TS (trips anag.) 18 SHORT(TEMPE)RED 24 anag. 25 PUP + I + L 27 alternate letters 28 SO + MNO + LENT 29 DIG + [j]EST 30 anag.

DOWN 1 REP + UBL(I)C (club anag.) 2 D(RYE)R 3 CHIC + AGO 5 POMP + E + II 6 COM(MISS)AR (carom anag.) 7 EN(CO)DE (need anag.) 8 RI(N)SES 9 hidden 15 G(AS IF + YIN)G  16 & 26 PET(PEEV)E (veep rev.)  17 I DO (LA)TRY 19 O + RIGINS (anag.) 20 THE(IS)M 21 [b]-EN + TOM-B 22 P(OPC)ORN (cop anag.) 23 IDCA (anag.) + RD