Do well over 110 in Early English and Latin (5)
I believe the answer is:
excel
'do well' is the definition.
(I've seen this in another clue)
'110 in early english and latin' is the wordplay.
'xx0' becomes 'xc' (I can't explain this - if you can you should give a lot more credence to this answer).
'in' indicates putting letters inside.
'early english' becomes 'EE' (architectural abbreviation).
'and' is a charade indicator (letters next to each other).
'latin' becomes 'l'.
'xc' put inside 'ee' is 'exce'.
'exce'+'l'='EXCEL'
'over' acts as a link.
Can you help me to learn more?
(Other definitions for excel that I've seen before include "Surpass; shine" , "Be pre-eminent" , "Perform exceptionally well" , "Be very good at, better than others" , "Every one" .)