Used to remove lids, for starters maybe (7)
I believe the answer is:
openers
I'm afraid I can't even guess how this answer relates to the clue.
Can you help me to learn more?
(Other definitions for openers that I've seen before include "Keys" , "in demand at picnics" , "Two bats" , "Batsmen Nos 1 and 2" , "Batsmen going in first" .)