Is done, perhaps, for an inventor (6)
I believe the answer is:
edison
'for an inventor' is the definition.
(Edison is an example)
'is done perhaps' is the wordplay.
'perhaps' indicates anagramming the letters.
'is'+'done'='isdone'
'isdone' is an anagram of 'EDISON'.
(Other definitions for edison that I've seen before include "Thomas ......, famous American inventor" , "Prolific inventor" , "Thomas Alva -, US inventor" , "US inventor of phonograph, electric light etc." , "Inventor of the carbon filament lamp, d. 1931" .)