Settled help needed by learner (4)
I believe the answer is:
laid
'settled' is the definition.
(I've seen this before)
'help needed by learner' is the wordplay.
'help' becomes 'aid' (synonyms).
'needed by' is a charade indicator (letters next to each other).
'learner' becomes 'l' (as in a learner driver with L-plates on their car).
'aid' put after 'l' is 'LAID'.
(Other definitions for laid that I've seen before include "tables may be?" , "Prepared (a trap)" , "(Of dining table) set" , "Put down like dial" , "Produced (an egg)" .)