To drink a lot gives personal appeal! (5)
I believe the answer is:
charm
'personal appeal' is the definition.
'charm' can be an answer for 'appeal' (synonyms). I am not certain of the 'personal' bit.
'to drink a lot' is the wordplay.
'to drink' becomes 'char' (I've seen this before).
'a lot' becomes 'm'.
'char'+'m'='CHARM'
'gives' is the link.
Can you help me to learn more?
(Other definitions for charm that I've seen before include "Allure" , "Talisman; flock of goldfinches" , "Group of finches" , "Engaging quality" , "Personal attraction" .)