English chaps in tent or flat (8)
I believe the answer is:
tenement
'flat' is the definition.
(I've seen this in another clue)
'english chaps in tent' is the wordplay.
'english' becomes 'e' (abbreviation).
'chaps' becomes 'men' (chap means a man).
'in' means one lot of letters goes inside another.
'e'+'men'='emen'
'emen' going within 'tent' is 'TENEMENT'.
'or' acts as a link.
(Other definitions for tenement that I've seen before include "Rented accommodation" , "Run-down building housing many people" , "Old dwelling for multiple occupation" , "Apartment in a US block" , "slum housing?" .)