Many giving learner advice? Cross about it (8)
I believe the answer is:
multiple
'many' is the definition.
('multiple' can be similar in meaning to 'many')
'learner advice? cross about it' is the wordplay.
'learner' becomes 'l'.
'advice?' becomes 'tip' (I've seen this before).
'cross' becomes 'mule' (I've seen this in other clues**).
'about it' is an insertion indicator.
'l'+'tip'='ltip'
'ltip' placed inside 'mule' is 'MULTIPLE'.
'giving' is the link.
(Other definitions for multiple that I've seen before include "Lit plume (anag)" , "Numerous and often varied" , "Having more than one part" , "Having several parts" , "Having many parts or components" .)