Minister and an eschewer of alcohol to the last (6)
I believe the answer is:
attend
'minister' is the definition.
(I've seen this before)
'an eschewer of alcohol to the last' is the wordplay.
'an eschewer of alcohol' becomes 'att' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'to the last' becomes 'end'.
'att'+'end'='ATTEND'
'and' is the link.
Can you help me to learn more?
(Other definitions for attend that I've seen before include "Take part in" , "Listen carefully" , "Listen closely" , "Completed" , "Be present or appear at" .)