A bird to get on the track of, we hear (5)
I believe the answer is:
stork
'a bird' is the definition.
(stork is a kind of bird)
'to get on the track of we hear' is the wordplay.
I cannot quite understand how this works, but
'to' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for stork that I've seen before include "Long-legged bird" , "The baby bird, so to speak" , "Large wading bird" , "Bird that delivers babies?" , "Baby-carrying bird?" .)