Apportions plenty to a learner (6)
I believe the answer is:
allots
'apportions' is the definition.
(I've seen this before)
'plenty to a learner' is the wordplay.
'plenty' becomes 'lots' (I've seen this before).
'to' means one lot of letters go next to another (I've seen this in other clues).
'learner' becomes 'l'.
'a'+'l'='al'
'lots' after 'al' is 'ALLOTS'.
(Other definitions for allots that I've seen before include "Dispenses or distributes" , "Allows to have" , "Gives, apportions" , "Apportions or assigns" , "Distributes, gives as share" .)