Maiden getting on and regarded as rich (7)
I believe the answer is:
moneyed
'rich' is the definition.
('moneyed' can be similar in meaning to 'rich')
'maiden getting on and regarded' is the wordplay.
'maiden' becomes 'm' (cricket abbreviation).
'getting' means one lot of letters go next to another.
'and' is a charade indicator (letters next to each other).
'regarded' becomes 'eyed' (I've seen this in other clues).
'm'+'on'+'eyed'='MONEYED'
'as' acts as a link.
(Other definitions for moneyed that I've seen before include "Mo' needy? (Anag)" , "Affluent" , "Having means" , "Well-to-do" , "rolling in it" .)