Crossword Genius

At home with old flame. Behave? Not quite (7)

Ross

I believe the answer is:

inexact

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'at home with old flame behave? not quite' is the definition.
I can't judge whether this definition defines the answer.

'home with old flame behave? not quite' is the wordplay.
'home' becomes 'in' ('he's home' can mean 'he's in').
'with' becomes 'w' (abbreviation).
'old flame' becomes 'ex' (an ex-partner).
'behave?' becomes 'act' (behaving is a kind of acting).
'not quite' means to remove the first letter.
'w'+'ex'+'act'='wexact'
'wexact' with its first letter removed is 'exact'.
'in'+'exact'='INEXACT'

Can you help me to learn more?

(Other definitions for inexact that I've seen before include "Nice tax (nag.)" , "Not precise, like some sciences" , "Woolly" , "Fuzzy - untrue" , "Not precise, ambiguous" .)

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