Mother and child producing fruit (6)
I believe the answer is:
damson
'fruit' is the definition.
(I know that damson is a fruit)
'mother and child' is the wordplay.
'mother' becomes 'dam' (female parent of an animal).
'and' is a charade indicator (letters next to each other).
'child' becomes 'son' (male child).
'dam'+'son'='DAMSON'
'producing' acts as a link.
(Other definitions for damson that I've seen before include "Kind of plum for nomads" , "Small purple plum" , "Small dark-purple plum" , "sort of fruit" , "Dark purple plum" .)