Woman providing account, anger mounting (5)
I believe the answer is:
erica
'woman' is the definition.
'account anger mounting' is the wordplay.
'account' becomes 'ac' (abbreviation).
'anger' becomes 'ire' (ire is intense rage).
'mounting' is a reversal indicator (going up in a down clue).
'ac'+'ire'='acire'
'acire' reversed gives 'ERICA'.
'providing' acts as a link.
(Other definitions for erica that I've seen before include "Heath genus; girl's name" , "Moorland plant, girl's name" , "Plant of the heath genus" , "Heather's Latin name?" , "growing up on the moors" .)