Some traverse a glen to see bird of prey (5)
I believe the answer is:
eagle
'bird of prey' is the definition.
(eagle is a kind of bird of prey)
'some traverse a glen to' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'EAGLE' is hidden within 'traverse a glen to'.
'see' acts as a link.
(Other definitions for eagle that I've seen before include "It normally takes two or three shots to shoot this" , "two strokes fewer?" , "A glee-ful bird?" , "Coin made of gold" , "good score" .)