Rash promises to pay after Gold Card’s returned right away (9)
I believe the answer is:
audacious
'rash' is the definition.
(thesaurus)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for audacious that I've seen before include "Bold - impertinent" , "Brazen" , "Recklessly bold" , "Dare-devil" , "Bold and daring" .)