Psychiatrist's contract (6)
I believe the answer is:
shrink
I believe this is a double definition.
'psychiatrist's' is the first definition.
(informal term for a psychiatrist)
'contract?' is the second definition.
(I know that contract can be written as shrink)
(Other definitions for shrink that I've seen before include "Draw back from the psychiatrist?" , "Become smaller, contract" , "Downsize" , "Shrivel" , "Diminish" .)