Remove a narrow piece (5)
I believe the answer is:
I believe this is a double definition.
'remove' is the first definition.
(stripping is a kind of removing)
'a narrow piece' is the second definition.
(as in a strip of material or land)
(Other definitions for strip that I've seen before include "Gradually undress to music", "Undress (provocatively)", "Remove clothes - maybe comic", "every football club needs", "runway".)