Stretch the neck (5)
I believe the answer is:
crane
'stretch the neck' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for crane that I've seen before include "To do it could mean a long stretch" , "Lifter; bird" , "Lifting structure" , "Bird; camera platform" , "Large long-legged bird" .)