Short female boxer? (3)
I believe the answer is:
ali
This clue might be a double definition.
'short female' is the first definition.
The definition suggests a singular noun which matches the answer.
'boxer?' is the second definition.
(Muhammad Ali)
(Other definitions for ali that I've seen before include "US heavyweight boxer" , "Champion boxer" , "Muhammad or Baba?" , "Old fighter" , "Ringmaster" .)