Chap with English cap (5)
I believe the answer is:
beret
'cap' is the definition.
(I know that Beret is a beret)
'chap with english' is the wordplay.
'chap' becomes 'Ber'.
'with english' becomes 'et' (I can't justify this - if you can you should believe this answer much more).
'ber'+'et'='BERET'
Can you help me to learn more?
(Other definitions for beret that I've seen before include "French flat hat" , "Round, brimless cap" , "Flattish felt cap" , "Soft brimless cap" , "Kind of floppy cap with no peak" .)