Man, perhaps, is left ecstasy (4)
I believe the answer is:
isle
'man perhaps' is the definition.
(Isle of Man is an example)
'is left ecstasy' is the wordplay.
'left' becomes 'l' (common abbreviation).
'ecstasy' becomes 'E' (informal term for the drug).
'is'+'l'+'e'='ISLE'
(Other definitions for isle that I've seen before include "Dogs, maybe" , "Lies (anag)" , "Sea-girt area" , "Skye, for example" , "eg Hoy, Yell or Sark" .)