One seeking enlightenment leading youth onto greater ideals (4)
I believe the answer is:
yogi
'one seeking enlightenment' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'leading youth onto greater ideals' is the wordplay.
'leading' says to take the initial letters.
The first letters of 'youth onto greater ideals' is 'YOGI'.
Can you help me to learn more?
(Other definitions for yogi that I've seen before include "Hindu expert in spiritual discipline" , "Cartoon bear (who has mastered Hindu philosophy?)" , "Guru's student" , "Someone practising certain Hindu disciplines" , "teacher of well-being" .)