Spy outwardly gets drunk and unfrozen (6)
I believe the answer is:
slushy
'unfrozen' is the definition.
(similar in meaning)
'spy outwardly gets drunk' is the wordplay.
'outwardly' means to remove the middle letters (only the outermost letters are used).
'gets' indicates putting letters inside (gets can mean captures or absorbs).
'drunk' becomes 'lush' (lush is a kind of drunk).
'spy' with its centre taken out is 'sy'.
'sy' enclosing 'lush' is 'SLUSHY'.
'and' acts as a link.
(Other definitions for slushy that I've seen before include "Like melting snow" , "Schmaltzy" , "Tritely sentimental" , "Mawkish" .)