Go over tries again by English (8)
I believe the answer is:
rehearse
'go over' is the definition.
(thesaurus)
'tries again by english' is the wordplay.
'tries again' becomes 'rehears' ('hears' can be a synonym for 'tries' so perhaps 'rehears' is OK for 'tries again').
'by' says to put letters next to each other.
'english' becomes 'e' (abbreviation).
'rehears'+'e'='REHEARSE'
(Other definitions for rehearse that I've seen before include "Recite - try out" , "Run through (a play)" , "Practice in theatre" , "Practise - run through" , "Practise play in theatre" .)