A common plant in Spring or September (5)
I believe the answer is:
gorse
'a common plant' is the definition.
The answer and definition can be both plants as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'in spring or september' is the wordplay.
'in' says the answer is hidden in the clue.
'GORSE' is hidden in the letters of 'spring or september'.
Can you help me to learn more?
(Other definitions for gorse that I've seen before include "Ogres (anag.)" , "Spiny heathland shrub" , "Prickly heath shrub" , "Spiny evergreen shrub" , "Wild evergreen shrub with yellow flowers and sharp thorns" .)