Help appreciated parsing these....
18d. Exotic woman's stopped about three times with ambassador (9) - RECHERCHE (Exotic)
I know 'Ambassador' is often HE but that's as far as I get.
12d. Second couple of stupid people turning round in recess (4) - APSE (Recess)
38d. Possibly psychotic American taken in by sign in wood (10) - DELUSIONAL (Possibly psychotic)
It looks like 'Amercan' = US + 'Wood' = DEAL, but that leaves LION for 'Sign'. which I don't get.
52d. Bird with long legs in bar (4) - RAIL would fit the definition for 'Bird' and 'Bar', but why 'Long legs'?