It grows seedy in a tasteful way (5)
I believe the answer is:
anise
'it grows' is the definition.
The definition suggests a singular noun which matches the answer.
'seedy in a tasteful way' is the wordplay.
'seedy' indicates anagramming the letters (I've seen this in other clues).
'tasteful way' becomes 'se' (I can't explain this - if you can you should give a lot more credence to this answer).
'in'+'a'='ina'
'ina' anagrammed gives 'ani'.
'ani'+'se'='ANISE'
Can you help me to learn more?
(Other definitions for anise that I've seen before include "Plant with liquorice-flavoured seeds" , "Plant with aromatic seeds" , "Plant with seeds used as flavouring" , "Plant giving ouzo flavour" , "Herb with aromatic seeds" .)