British worker embracing to some extent chaps in exile (10)
I believe the answer is:
banishment
'exile' is the definition.
(I've seen this before)
'british worker embracing to some extent chaps' is the wordplay.
'british' becomes 'b' (abbreviation e.g. in 'BBC').
'worker' becomes 'ant' (worker is a type of ant).
'embracing' means one lot of letters goes inside another.
'to some extent' becomes 'ish' (adjectival suffix meaning to some extent).
'chaps' becomes 'men' (chap means a man).
'ish'+'men'='ishmen'
'ant' enclosing 'ishmen' is 'anishment'.
'b'+'anishment'='BANISHMENT'
'in' acts as a link.
(Other definitions for banishment that I've seen before include "Expatriation" , "Exile" , "The exclusion of someone from a country" .)