Restraining madman is our job, tangling with menace is not (3,2,5,5)
I believe the answer is:
men in white coats
'restraining madman is our job tangling' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.
'with menace is not' is the wordplay.
I cannot really understand how this works, but
an anagram of 'with' is 'whit' which is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for men in white coats that I've seen before include "may offer you asylum" , "medical staff" , "They're appealed to" .)