Remove worker, a sexist to some extent (5)
I believe the answer is:
erase
'remove' is the definition.
(thesaurus)
'worker a sexist to some extent' is the wordplay.
'to some extent' indicates a hidden word.
'ERASE' can be found hidden inside 'worker a sexist'.
(Other definitions for erase that I've seen before include "Remove evidence of" , "Obliterate" , "Eliminate" , "Remove all traces of" , "To remove all trace" .)