Surpass a large size, say (5)
I believe the answer is:
excel
'surpass' is the definition.
(synonyms)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for excel that I've seen before include "Do superbly well" , "Do really well, outshine others" , "well above average" , "surpass all others" , "cap" .)