Find Republican following a foreign chap (7)
I believe the answer is:
uncover
'find' is the definition.
(thesaurus)
'republican following a foreign chap' is the wordplay.
'republican' becomes 'r' (abbreviation).
'following' is a charade indicator (letters next to each other).
'a foreign' becomes 'un' ('a' translated into French).
'chap' becomes 'cove' (British slang term).
'un'+'cove'='uncove'
'r' put after 'uncove' is 'UNCOVER'.
(Other definitions for uncover that I've seen before include "Make visible" , "Take the lid off" , "Expose, unveil" , "Strip off" , "show?" .)