Unscented old roses flourish around community centre (9)
I believe the answer is:
odourless
'unscented' is the definition.
(I've seen this before)
'old roses flourish around community centre' is the wordplay.
'flourish' is an anagram indicator (I've seen 'flourished' mean this (I've seen this in other clues)).
'around' means one lot of letters goes inside another.
'centre' means to look at the middle letters.
The middle of 'community' is 'u'.
'old'+'roses'='oldroses'
'oldroses' anagrammed gives 'odorless'.
'odorless' enclosing 'u' is 'ODOURLESS'.
(Other definitions for odourless that I've seen before include "having no hint of whiff" , "Unscented" , "devoid of smell" , "not using scent" , "without bouquet" .)