Crossword Genius

Accountant wanting almost everything increased and added up (8)

Ross

I believe the answer is:

amounted

'added up' is the definition.

'accountant wanting almost everything increased' is the wordplay.
'wanting almost everything' says to take the initial letters (all of the letters except one are ignored).
'increased' becomes 'mounted' (eg financial costs mount up).
The first letter of 'accountant' is 'a'.
'a'+'mounted'='AMOUNTED'

'and' acts as a link.

I've seen this clue in The Independent.
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