Sample fewer, being vulgar (9)
I believe the answer is:
tasteless
'vulgar' is the definition.
(similar in meaning)
'sample fewer' is the wordplay.
'sample' becomes 'taste' (synonyms).
'fewer' becomes 'less' (associated in meaning).
'taste'+'less'='TASTELESS'
'being' is the link.
(Other definitions for tasteless that I've seen before include "improper" , "Lacking flavour or ability to appreciate the beautiful" , "Unseemly" , "Insipid - vulgar" , "Lacking flavour or aesthetic appreciation" .)