Flyer having arguments (7)
I believe the answer is:
sparrow
'flyer' is the definition.
(type of bird)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for sparrow that I've seen before include "Common small bird" , "Robin's slayer" , "Singing bird" , "Pirate" , "Little brown bird" .)