Names rebel at work in towns (11)
I believe the answer is:
celebrities
'names' is the definition.
(name can mean a famous person)
'rebel at work in towns' is the wordplay.
'at work' indicates an anagram.
'in' indicates putting letters inside.
'towns' becomes 'cities'.
'rebel' with letters rearranged gives 'elebr'.
'elebr' placed into 'cities' is 'CELEBRITIES'.
(Other definitions for celebrities that I've seen before include "Famous folk" , "Eminent people" , "Famous people" .)