Wild flower: give to old drunk (3,6)
I believe the answer is:
dog violet
'wild flower' is the definition.
(I know that dog violet is a type of wild flower)
'give to old drunk' is the wordplay.
'drunk' indicates anagramming the letters.
'give'+'to'+'old'='givetoold'
'givetoold' with letters rearranged gives 'DOG-VIOLET'.
(Other definitions for dog violet that I've seen before include "plant" , "Small bloomer" , "One grows wild" .)