Relatives in salons win makeover (4-2-3)
I believe the answer is:
sons-in-law
'relatives' is the definition.
(son-in-law is a kind of relative)
'in salons win makeover' is the wordplay.
'win' becomes 'w' (abbreviation in sport).
'makeover' indicates anagramming the letters (I've seen this in other clues).
'in'+'salons'+'w'='insalonsw'
'insalonsw' with letters rearranged gives 'SONS-IN-LAW'.
(Other definitions for sons-in-law that I've seen before include "They have married into the family" , "They're married to daughters" .)