Cash from article failing to appear in atonement? (5)
I believe the answer is:
pence
'cash' is the definition.
(pennies)
'article failing to appear in atonement?' is the wordplay.
'article' becomes 'an' (indefinite article).
'failing to appear in' indicates named letters should be taken away.
'atonement?' becomes 'penance' (I've seen this before).
'penance' with 'an' taken out is 'PENCE'.
'from' is the link.
(Other definitions for pence that I've seen before include "Small change" , "Small sum of money" , "Lowest denomination of British currency" , "Small coppers" , "Copper coins" .)