Put away each tin-opener (3)
I believe the answer is:
eat
'put away' is the definition.
(I've seen this in another clue)
'each tin-opener' is the wordplay.
'each' becomes 'ea'.
'opener' says to take the initial letters.
The initial letter of 'tin' is 't'.
'ea'+'t'='EAT'
(Other definitions for eat that I've seen before include "put away" , "Do cats - bats? Do bats - cats? (Alice in Wonderland)" , "get stuck in" , "Worry" , "Consume for tea" .)