Wrongly wish solution could be liquor! (7)
I believe the answer is:
whiskey
'liquor' is the definition.
(I know that whiskey is a type of liquor)
'wrongly wish solution' is the wordplay.
'wrongly' indicates an anagram (I've seen this in other clues).
'solution' becomes 'key' (I've seen this in another clue).
'wish' is an anagram of 'whis'.
'whis'+'key'='WHISKEY'
'could be' acts as a link.
(Other definitions for whiskey that I've seen before include "Irish or American liquor" , "Irish drink" , "Irish spirit" .)