In excitement, I reveal total (6)
I believe the answer is:
entire
'total' is the definition.
(synonyms)
'in excitement i reveal' is the wordplay.
'in' indicates the answer is hidden within the clue.
'ENTIRE' is hidden in the letters of 'excitement i reveal'.
(Other definitions for entire that I've seen before include "excluding nothing" , "Complete, intact" , "Full and complete" , "Whole; absolute" , "Lure" .)