Pole or perch a shaft (3)
I believe the answer is:
rod
I believe this clue is a double definition.
'pole or perch' is the first definition.
(I've seen this before)
'a shaft' is the second definition.
(thesaurus)
(Other definitions for rod that I've seen before include "Fisherman's item" , "Spare it and spoil the child, they used to say" , "Angler's pole" , "that most anglers use" , "Baton, pole" .)