One entering pub by hotel in French resort (8)
I believe the answer is:
biarritz
'french resort' is the definition.
(Biarritz is a French city)
'one entering pub by hotel' is the wordplay.
'one' becomes 'I' (Roman numeral).
'entering' indicates putting letters inside.
'pub' becomes 'bar' (both are drinking establishments).
'by' means one lot of letters go next to another.
'hotel' becomes 'ritz' (I've seen this before).
'i' going inside 'bar' is 'biar'.
'biar'+'ritz'='BIARRITZ'
'in' acts as a link.
(Other definitions for biarritz that I've seen before include "French coastal resort" , "Seaside resort in south-west France" , "Bay of Biscay resort" , "French Biscay resort" .)