Comic actor's hugging widow (who might get the hump) (7)
I believe the answer is:
dowager
'widow who might get the hump' is the definition.
(as in the phrase 'dowager's hump')
'comic actor's hugging' is the wordplay.
'comic' becomes 'wag' (wag can mean a comical person).
'actor' becomes 'doer' (synonyms).
'hugging' indicates putting letters inside.
'wag' put inside 'doer' is 'DOWAGER'.
(Other definitions for dowager that I've seen before include "Woman who holds title from dead husband" , "One of 16 [OLD GIRLS]" , "Important widow" , "Rich old woman" , "woman of status" .)