Scope of brief article on money (7)
I believe the answer is:
breadth
'scope' is the definition.
(I've seen this in another clue)
'brief article on money' is the wordplay.
'brief' means to remove the last letter (a shorter or briefer version of the word).
'article' becomes 'the' (the definite article).
'on' is a charade indicator (letters next to each other).
'money' becomes 'bread' (bread is slang for money).
'the' with its final letter removed is 'th'.
'th' put after 'bread' is 'BREADTH'.
'of' acts as a link.
(Other definitions for breadth that I've seen before include "Width, thickness" , "Latitude, broadness" , "Red bath (anag)" , "Wide measurement" , "Liberality" .)