Numbers say - and say rudely - "There aren't many flowers here" (8)
I believe the answer is:
nosegays
'there aren't many flowers here' is the definition.
The definition suggests a singular noun but the answer is a plural noun.
'numbers say and say rudely' is the wordplay.
'numbers' becomes 'nos' (no. is a kind of number).
'say' becomes 'eg' (both can mean 'for example').
'and' says to put letters next to each other.
'rudely' indicates anagramming the letters.
'say' anagrammed gives 'ays'.
'nos'+'eg'+'ays'='NOSEGAYS'
Can you help me to learn more?
(Other definitions for nosegays that I've seen before include "floral arrangements" , "Small bunches of flowers" , "Bouquets" .)