Hoist for a wader (5)
I believe the answer is:
crane
I believe this is a double definition.
'hoist' is the first definition.
(I've seen this in another clue)
'for a wader' is the second definition.
(crane is a kind of wader)
(Other definitions for crane that I've seen before include "Bird; hoister" , "To do it could mean a long stretch" , "Long-necked wading bird and lifting machine" , "Tall wading bird can lift heavy loads" , "American writer" .)