Good learner in store to circulate (6)
I believe the answer is:
mingle
'circulate' is the definition.
(thesaurus)
'good learner in store' is the wordplay.
'good' becomes 'g' (abbreviation).
'learner' becomes 'l'.
'in' indicates putting letters inside.
'store' becomes 'mine' (I've seen this before**).
'g'+'l'='gl'
'gl' inserted into 'mine' is 'MINGLE'.
'to' acts as a link.
(Other definitions for mingle that I've seen before include "Circulate at a party" , "Mix together" , "Dawn song, poem" , "Join the crowd, mix in" , "Mix - associate" .)