Clubs brandished at air pilots? (4)
I believe the answer is:
bats
'clubs' is the definition.
(bat is a kind of club)
'brandished at air pilots?' is the wordplay.
I cannot really understand how this works, but
'at' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for bats that I've seen before include "Crazy; night-fliers" , "cracked" , "Those striking" , "Hutton and Gilligan" , "Bonkers (sl.)" .)