Good woman accommodating learner happily (6)
I believe the answer is:
gladly
'happily' is the definition.
(thesaurus)
'good woman accommodating learner' is the wordplay.
'good' becomes 'g' (abbreviation).
'woman' becomes 'lady' (lady is a kind of woman**).
'accommodating' means one lot of letters goes inside another.
'learner' becomes 'l'.
'lady' placed around 'l' is 'ladly'.
'g'+'ladly'='GLADLY'
(Other definitions for gladly that I've seen before include "With pleasure" , "Delightedly" .)