City suffering torn parts excessively (7)
I believe the answer is:
toronto
'city' is the definition.
(Toronto is an example)
'suffering torn parts excessively' is the wordplay.
'suffering' indicates anagramming the letters.
'parts' is an insertion indicator (inserted letters separate or part others).
'excessively' becomes 'too' (to too great a degree).
'torn' with letters rearranged gives 'ront'.
'ront' inserted into 'too' is 'TORONTO'.
(Other definitions for toronto that I've seen before include "Canadian city" , "Capital city of Ontario" , "major city" , "Canada's largest city" , "Transatlantic city" .)