Special collection from East presented by lush Heather (9)
I believe the answer is:
esoterica
'special collection' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'east presented by lush heather' is the wordplay.
'east' becomes 'e' (abbreviation).
'presented by' is a charade indicator (letters next to each other).
'lush' becomes 'sot' (both can mean a drunk).
'heather' becomes 'erica' (the plant genus Erica includes heather plants).
'e'+'sot'+'erica'='ESOTERICA'
'from' acts as a link.
Can you help me to learn more?
(Other definitions for esoterica that I've seen before include "Coarse tie? (anag)" , "things not seen by many?" , "Material appearing mysterious" , "Highly specialised subjects" , "Mysterious items -- ciao trees (anag)" .)