Love alcoholic drink that's kept diluted (7)
I believe the answer is:
nothing
'love' is the definition.
(I've seen this before)
'alcoholic drink that's kept diluted' is the wordplay.
'alcoholic drink' becomes 'nog' (as in eggnog).
'that's kept' indicates putting letters inside.
'diluted' becomes 'thin'.
'nog' placed around 'thin' is 'NOTHING'.
(Other definitions for nothing that I've seen before include "Something sweet" , "Not anything" , "Not a whit" , "See 1" , "Naught, nil, nix" .)