Learner in pass, papers outstanding (8)
I believe the answer is:
splendid
'outstanding' is the definition.
(thesaurus)
'learner in pass papers' is the wordplay.
'learner' becomes 'l'.
'in' is an insertion indicator.
'pass' becomes 'spend' ('spend' can be a synonym of 'pass'**).
'papers' becomes 'id' (identification papers).
'l' going inside 'spend' is 'splend'.
'splend'+'id'='SPLENDID'
(Other definitions for splendid that I've seen before include "Grand" , "Characterised by grandeur" , "Magnificent, glorious" , "super" , "Marvellous" .)