A long piece can still be comic (5)
I believe the answer is:
strip
This clue might be a double definition.
'a long piece' is the first definition.
'strip' can be an answer for 'piece' (I have seen 'Thin piece ' mean 'strip' so perhaps 'piece' could also mean 'strip'). I am unsure of the 'a long' bit.
'can still be comic' is the second definition.
'strip' can be an answer for 'can' (thesaurus). I'm not sure about the 'still be comic' bit.
Can you help me to learn more?
(Other definitions for strip that I've seen before include "Kind of lighting" , "Undress completely" , "Set of football clothes" , "Take off clothing" , "sports outfit" .)