Reveal what's found out about learner? (6)
I believe the answer is:
unfold
'reveal' is the definition.
(unfolding is a kind of revealing)
'found out about learner?' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'about' means one lot of letters goes inside another.
'learner?' becomes 'l'.
'found' anagrammed gives 'unfod'.
'unfod' going around 'l' is 'UNFOLD'.
'what's' acts as a link.
(Other definitions for unfold that I've seen before include "Spread out or become visible" , "Ensue; straighten" , "Open out or reveal gradually" , "Spread out or become known" , "Open out - develop" .)