A wild binge may be only human (5)
I believe the answer is:
being
'only human' is the definition.
'being' can be an answer for 'human' (I've seen this in another clue). I'm not certain of the 'only' bit.
'a wild binge' is the wordplay.
'a wild' indicates an anagram.
'binge' anagrammed gives 'BEING'.
'may be' is the link.
Can you help me to learn more?
(Other definitions for being that I've seen before include "See 9" , "Existing" , "A living creature" , "A matter of 9 in the play" , "Living thing" .)