Take off team colours (5)
I believe the answer is:
strip
'take off' is the definition.
(stripping is a kind of taking off)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for strip that I've seen before include "Tear off" , "Peel; long narrow piece" , "Series of cartoon pictures - undress salaciously" , "Thin piece" , "every football club needs" .)