Have English pub sandwiches (4)
I believe the answer is:
bear
'have' is the definition.
(bearing is a kind of having)
'english pub sandwiches' is the wordplay.
'english' becomes 'E' (abbreviation as in OED).
'pub' becomes 'bar' (both are drinking establishments).
'sandwiches' means one lot of letters goes inside another (inserted letters are sandwiched in).
'e' put within 'bar' is 'BEAR'.
(Other definitions for bear that I've seen before include "Abide; support" , "someone being ill-mannered" , "Go" , "Show" , "grizzly, perhaps?" .)