Some might say strange but fair (6)
I believe the answer is:
bazaar
'fair' is the definition.
(synonyms)
'some might say strange' is the wordplay.
'some might say' indicates a 'sounds like' (homophone) clue.
'strange' becomes 'bizarre' (synonyms).
'bizarre' sounds like 'BAZAAR'.
'but' acts as a link.
(Other definitions for bazaar that I've seen before include "Where many would shop" , "Eastern marketplace" , "Middle East market - fundraising event" , "Open-air market of oriental origin" , "Oriental market place" .)