Reasonable to circulate learner's talent (5)
I believe the answer is:
flair
'talent' is the definition.
(I know that flair is a type of talent)
'reasonable to circulate learner's' is the wordplay.
'reasonable' becomes 'fair' (associated in meaning).
'to circulate' means one lot of letters goes inside another (some letters go round others).
'learner' becomes 'l' (as in a learner driver with L-plates on their car).
'fair' enclosing 'l' is 'FLAIR'.
(Other definitions for flair that I've seen before include "Bent" , "Intuitive discernment" , "gift" , "Stylish talent" , "Natural ability/talent" .)