Whole, complete (6)
I believe the answer is:
entire
This clue is a double definition.
'whole' is the first definition.
(similar in meaning)
'complete' is the second definition.
(synonyms)
(Other definitions for entire that I've seen before include "excluding nothing" , "in one piece" , "Whole - undamaged" , "Lure" , "Complete, intact" .)