Endure insinuations about controls? (5,2)
I believe the answer is:
'controls?' is the definition.
(to rein in is to control)
'endure insinuations about' is the wordplay.
'about' says the answer is hidden in the clue (the clue goes around or about the answer).
'REINS IN' is hidden in the letters of 'endure insinuations'.
(Another definition for reins in that I've seen is " Checks".)