2d Agronomic - 'a(nswer) gnomic (pithy)' (about) '(c)ro(p)' (at heart)
3d Embargoed - 'me' (setter, turning) + 'barged' (outside) 'o' (round)
9a Caribou - '(s)car(f) (t)i(e) (a)bou(t)' (stripped off)
20d Wacky - 'C(alvin) K(lein)' (in) 'way' (fashion)