Crossword Genius

Exorbitancy sees spent ruination (9)

Ross

I believe the answer is:

steepness

I'm a little stuck... Click here to teach me more about this clue!

'exorbitancy' is the definition.
I can't judge whether this defines the answer.

'sees spent ruination' is the wordplay.
'ruination' indicates an anagram (the letters are ruined).
'sees'+'spent'='seesspent'
'seesspent' is an anagram of 'STEEPNESS'.

Can you help me to learn more?

(Another definition for steepness that I've seen is " Gradient".)

I've seen this clue in the Sydney Morning Herald.
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