Cook a little quiche, finally (4)
I believe the answer is:
chef
'cook' is the definition.
(both can mean someone who cooks)
'a little quiche finally' is the wordplay.
'a little' indicates the answer is hidden within the clue.
'CHEF' is hidden in the letters of 'quiche finally'.
(Other definitions for chef that I've seen before include "One who prepares courses" , "Cooker?" , "Chief male cook in restaurant" , "Head cook in a restaurant" , "Hotel cook" .)