Flier reprinted regularly (4)
I believe the answer is:
erne
'flier' is the definition.
(erne is a kind of birdanimal)
'reprinted regularly' is the wordplay.
'regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
The alternate letters of 'reprinted' are 'ERNE'.
(Other definitions for erne that I've seen before include "Marine flyer" , "Seabird" , "White-tailed eagle" , "Eagle, river and lough" , "Large bird" .)