Persuade European accepting time is fair (9)

I believe the answer is:

temperate

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'fair' is the definition.
Both the answer and definition are adjectives. Maybe they are linked in a way I don't understand?

'persuade european accepting time' is the wordplay.
'persuade' becomes 'tempera' (I can't justify this - if you can you should give a lot more credence to this answer).
'european' becomes 'E' (abbreviation e.g. EU).
'accepting' is an insertion indicator (inserted letters are accepted).
'time' becomes 't' (abbreviation).
'tempera'+'e'='temperae'
'temperae' going around 't' is 'TEMPERATE'.

'is' acts as a link.

Can you help me to learn more?

(Other definitions for temperate that I've seen before include "with balmy climate" , "benign" , "Showing moderation" , "Moderate, mild" , "comfortably warm?" .)

I've seen this clue in The Telegraph.

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