Small coin and notes are aromatic (7)
I believe the answer is:
scented
'aromatic' is the definition.
(I've seen this in another clue)
'small coin and notes' is the wordplay.
'small' becomes 's' (abbreviation - e.g. clothes size).
'coin' becomes 'cent' (cent is a kind of coin).
'and' means one lot of letters go next to another.
'notes' becomes 'ed' ().
's'+'cent'+'ed'='SCENTED'
'are' is the link.
(Other definitions for scented that I've seen before include "Sweet-smelling" , "Having a fragrance" , "Having pleasant smell" , "sensed" , "Fragrant" .)