Loaded a firearm, at first easy (8)
I believe the answer is:
affluent
'loaded' is the definition.
(loaded can mean very rich)
'a firearm at first easy' is the wordplay.
'at first' suggests taking the first letters.
'easy' becomes 'fluent' (I am not sure about this - if you are sure you should believe this answer much more).
The first letter of 'firearm' is 'f'.
'a'+'f'+'fluent'='AFFLUENT'
Can you help me to learn more?
(Other definitions for affluent that I've seen before include "Very well off, quite rich" , "Well-to-do, got lots of money" , "Well off, having plenty of money" , "Wealthy - abundant" , "Well-off" .)