City; large tub (4)
I believe the answer is:
bath
I believe this clue is a double definition.
'city' is the first definition.
(English city)
'large tub' is the second definition.
(I've seen this before)
(Other definitions for bath that I've seen before include "SW spa city" , "Hard cheese biscuit -- a live throb (anag)" , "Avon city - tub" , "Historic spa town" , "Somerset spa" .)