Managed to be back before class to make report (7)
I believe the answer is:
narrate
'report' is the definition.
(thesaurus)
'managed to be back before class' is the wordplay.
'managed' becomes 'ran' (I've seen this before).
'to be back' shows that the letters should be reversed in order.
'before' says to put letters next to each other.
'class' becomes 'rate' (I've seen this before).
'ran' reversed gives 'nar'.
'nar'+'rate'='NARRATE'
'to make' is the link.
(Other definitions for narrate that I've seen before include "recount events" , "Rare ant (anag.)" , "Tell story,recount" , "Read" , "tell tales" .)