Melania's drinking spirit (4)
I believe the answer is:
elan
'spirit' is the definition.
(elan is a kind of spirit)
'melania's drinking' is the wordplay.
'drinking' indicates the answer is hidden within the clue (the clue has drunk in the answer).
'ELAN' is hidden within 'melania'.
(Other definitions for elan that I've seen before include "French dish in lane" , "Style and verve" , "French verve" , "Energetic style - anagram of 3" , "Style and liveliness" .)