Play involving a doctor and a mother (5)
I believe the answer is:
drama
'play' is the definition.
(I know that play can be written as drama)
'a doctor and a mother?' is the wordplay.
'a doctor' becomes 'Dr' (abbreviation).
'and' is a charade indicator (letters next to each other).
'mother?' becomes 'ma' (Ma is another word for mother or mum).
'dr'+'a'+'ma'='DRAMA'
'involving' is the link.
(Other definitions for drama that I've seen before include "Play - excitement" , "Literary genre for the theatre" , "Emotional sequence of events (made out of a crisis?)" , "Play (as a genre)" , "theatre studies" .)