Quickly wash baby and prepare vegetables (3,3,4)
I believe the answer is:
top and tail
This clue is a double definition.
'quickly wash baby' is the first definition.
(wash a baby's head and bottom)
'prepare vegetables' is the second definition.
(I've seen this before)
'and' is the link.
(Other definitions for top and tail that I've seen before include "quickly see to baby" , "Prepare (vegetables)" , "cursory wash" , "Scamp washing baby" .)