Racecourse favourite getting celebrity welcome? (3,6)
I believe the answer is:
red carpet
'celebrity welcome?' is the definition.
(a red carpet is used to welcome celebrities)
'racecourse favourite getting' is the wordplay.
'racecourse' becomes 'redcar' (racecourse in North Yorkshire).
'favourite' becomes 'pet' (synonyms).
'getting' says to put letters next to each other.
'redcar'+'pet'='RED-CARPET'
(Other definitions for red carpet that I've seen before include "see VIP on this?" , "base for celebrities" , "sort of deferential treatment?" , "Welcoming strip" , "special welcome" .)