Fellow is after tea? No, wine (10)
I believe the answer is:
chardonnay
'wine' is the definition.
(Chardonnay is an example)
'fellow is after tea? no' is the wordplay.
'fellow' becomes 'don' (I've seen this before).
'is after' says to put letters next to each other.
'tea?' becomes 'char' (I've seen this before).
'no' becomes 'nay' (I've seen this before).
'don' put after 'char' is 'chardon'.
'chardon'+'nay'='CHARDONNAY'
(Other definitions for chardonnay that I've seen before include "Variety of white wine" , "White wine grape" , "drink" .)