Shadow cabinet essentially cutting protective clothing? One might be fuming (8)
I believe the answer is:
tailpipe
'one might be fuming' is the definition.
(tailpipes let out fumes)
'shadow cabinet essentially cutting protective clothing?' is the wordplay.
'shadow' becomes 'tail' (both can mean to follow someone).
'cabinet essentially cutting protective clothing?' becomes 'pipe' (I can't justify this - if you can you should give a lot more credence to this answer).
'tail'+'pipe'='TAILPIPE'
Can you help me to learn more?
(Other definitions for tailpipe that I've seen before include "Car exhaust (US)" , "End to an exhaust system" , "Rear section of exhaust" .)