Right to have a face on this tyre? (6)
I believe the answer is:
radial
'this tyre?' is the definition.
(radial is a kind of tyre)
'right to have a face' is the wordplay.
'right' becomes 'r' (common abbreviation).
'to have' means one lot of letters go next to another.
'face' becomes 'dial' (dial is a kind of face**).
'r'+'a'+'dial'='RADIAL'
'on' is the link.
(Other definitions for radial that I've seen before include "Type of car tyre" , "tread on it" , "tire (American)" , "Like Circle Line" , "Set out as wheel spokes" .)