Eye star possibly drinking whisky in the past (10)
I believe the answer is:
yesteryear
'in the past' is the definition.
(I've seen this before)
'eye star possibly drinking whisky' is the wordplay.
'possibly' indicates an anagram.
'drinking' indicates putting letters inside.
'whisky' becomes 'rye' (rye whisky is a kind of whisky).
'eye'+'star'='eyestar'
'eyestar' is an anagram of 'yestear'.
'yestear' going around 'rye' is 'YESTERYEAR'.
(Other definitions for yesteryear that I've seen before include "Nostalgic days" , "Twelve months ago" , "Days of old (poet.)" , "The recent past" , "Days gone by" .)