Alcoholic drink of pirate, if at sea (8)
I believe the answer is:
aperitif
'alcoholic drink' is the definition.
'aperitif' can be an answer for 'drink' (aperitif is a kind of drink). I am unsure of the 'alcoholic' bit.
'pirate if at sea' is the wordplay.
'at sea' indicates an anagram.
'pirate'+'if'='pirateif'
'pirateif' is an anagram of 'APERITIF'.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for aperitif that I've seen before include "Preprandial drink" , "Preliminary drink" , "wine, possibly, before meal" , "Alcoholic drink before a meal, like sherry" , "Pre-meal drink" .)