Raise sign and French will see it's for wealthy buyers (8)
I believe the answer is:
upmarket
'see it's for wealthy buyers' is the definition.
I can't judge whether this defines the answer.
'raise sign and french' is the wordplay.
'raise' becomes 'up' (I've seen this in other clues).
'sign' becomes 'mark' (mark is a kind of sign).
'and french' becomes 'et' ('and' in French).
'up'+'mark'+'et'='UPMARKET'
'will' acts as a link.
Can you help me to learn more?
(Other definitions for upmarket that I've seen before include "Suitable for affluent consumers" , "Superior" , "high quality" , "Aimed at those with money" , "Relatively expensive" .)