Singer-songwriter Janis (3)
I believe the answer is:
ian
'singer-songwriter janis' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ian that I've seen before include "The familiar Mr Paisley" , "- Botham, cricketer" , "The familiar Dr Paisley" , "The familar Dr Paisley" , "Boy's name (Scottish?)" .)