Was fitting American with desire for wealth (6)
I believe the answer is:
agreed
'was fitting' is the definition.
(I've seen this before)
'american with desire for wealth' is the wordplay.
I cannot quite see how this works, but
'american' could be 'a' (common abbreviation - e.g. in organisation names) and 'a' is present in the answer.
'desire' could be 'greed' (greed is a kind of desire) and 'greed' is found in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for agreed that I've seen before include "Of one mind" , "Shared an opinion" , "Expressed willingness" , "very well" , "I'll go along with that" .)