Cheap booze from pub enthralling first of alcoholics (7)
I believe the answer is:
bargain
'cheap' is the definition.
(sold at a bargain price)
'booze from pub enthralling first of alcoholics' is the wordplay.
I cannot really see how this works, but
'from' could be 'in' (I've seen this in other clues) and 'in' is found within the answer.
'pub' could be 'bar' (both are drinking establishments) and 'bar' is found within the answer.
'first' could be 'a' and 'a' is found within the answer.
A single letter 'g' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
(Other definitions for bargain that I've seen before include "Count on" , "Discuss terms for buying" , "Haggle; a good deal" , "Cheap purchase" , "Special offer" .)