Crossword Genius

Attitudes fixed in time, oddly in dissent (7)

Ross

I believe the answer is:

mindset

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

'time oddly in dissent' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'attitudes fixed' is the wordplay.
'attitudes' becomes 'mind' (I can't justify this - if you can you should believe this answer much more).
'fixed' becomes 'set' (synonyms).
'mind'+'set'='MINDSET'

'in' is the link.

Can you help me to learn more?

(Other definitions for mindset that I've seen before include "thinking normally" , "Characteristic mental attitude" , "convictions" , "Outlook" , "attitudes and values" .)

I've seen this clue in The Guardian.
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