Some poinsettias displayed in a corner (5)
I believe the answer is:
inset
'a corner' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'some poinsettias displayed' is the wordplay.
'some' indicates a hidden word (some parts of the word are used).
'INSET' is hidden within 'poinsettias displayed'.
'in' is the link.
Can you help me to learn more?
(Other definitions for inset that I've seen before include "Small map within larger; teacher training day" , "Implant" , "It could be stuck between pages" , "Something put into something else" , "Small picture within borders of another" .)