Sortie (5)
I believe the answer is:
sally
'sortie' is the definition.
(I know that sortie can be written as sally)
This is the entire clue.
(Other definitions for sally that I've seen before include "A sortie or witty remark" , "- - Lunn, flat cake" , "Charge" , "Witty riposte" , "one in 3 the 12 30 [DROP the DEAD DONKEY]" .)