Mother and child supplying 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' means one lot of letters go next to another.
'child' becomes 'son' (male child).
'dam'+'son'='DAMSON'
'supplying' acts as a link.
(Other definitions for damson that I've seen before include "Stone fruit for nomads" , "Type of plum" , "jam producer" , "Plum-coloured" , "Sort of plum" .)