Can turning over tool identify tiny problems? (7)
I believe the answer is:
nitpick
'identify tiny problems?' is the definition.
(to nitpick is to make pedantic criticisms)
'can turning over tool' is the wordplay.
'can' becomes 'tin' (both are metal containers).
'turning over' says the letters should be written backwards.
'tool' becomes 'pick' (pick is a kind of tool).
'tin' written backwards gives 'nit'.
'nit'+'pick'='NITPICK'
(Other definitions for nitpick that I've seen before include "Raise petty objections" , "Be very particular" , "Have little complaint" , "Find fault fussily" , "Find fault in petty way" .)