Wealthiest (7)
I believe the answer is:
richest
'wealthiest' is the definition.
('rich' can be similar in meaning to 'wealthy')
This is all the clue.
(Other definitions for richest that I've seen before include "Least likely to be a beggar" , "Most well-off" , "extremely ornate" , "Most productive" , "Most affluent and opulent" .)