Self-seeker (6)
I believe the answer is:
egoist
'self-seeker' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for egoist that I've seen before include "Selfish person" , "Excessively conceited person" , "ill with him to think of others" , "Narcissist" , "Self-seeker" .)