To a brave person, a bit of fun with a bird (5)
I believe the answer is:
heron
'bird' is the definition.
(I know that heron is a type of bird)
'to a brave person a bit of fun' is the wordplay.
'to a brave person' becomes 'hero' (I've seen this before).
'a bit of fun' becomes 'n' (I can't explain this - if you can you should believe this answer much more).
'hero'+'n'='HERON'
'with a' is the link.
Can you help me to learn more?
(Other definitions for heron that I've seen before include "Large British wading bird" , "Wading bird with long neck and legs" , "Wader" , "Big bird" , "Tall wading bird" .)