Angrily criticise what Post Office counter clerk may do with stamps? (4,3,1,5)
I believe the answer is:
tear off a strip
If this is the answer I cannot explain how the clue works.
Can you help me to learn more?
(Other definitions for tear off a strip that I've seen before include "how to make it a bit narrower?" , "Carpet" , "Reprimand" .)