Fine, but not necessarily upright (5)

I believe the answer is:

grand

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This clue could be a double definition.

'fine' is the first definition.
(I've seen this before)

'not necessarily upright' is the second definition.
'grand' can be an answer for 'upright' (thesaurus). I'm unsure of the 'not necessarily' bit.

'but' acts as a link.

Can you help me to learn more?

(Other definitions for grand that I've seen before include "A slangy PS1,000" , "Majestic" , "Designed to impress" , "Fine" , "Impressive, large" .)

I've seen this clue in the Evening Standard.

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