Former stage turn was quite precise (5)
I believe the answer is:
exact
'precise' is the definition.
(I know that precise can be written as exact)
'former stage turn was quite' is the wordplay.
I cannot quite understand how this works, but
'former' could be 'ex' (prefix meaning former or onetime) and 'ex' is present in the answer.
'turn' could be 'act' (theatre) and 'act' is found in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for exact that I've seen before include "Finished" , "on the money" , "Demand, extort" , "Precise; extort" , "correct in every detail" .)