Lingering impression following display of aesthetic discernment (10)
I believe the answer is:
aftertaste
'lingering impression' is the definition.
(I've seen this before)
'following display of aesthetic discernment' is the wordplay.
I cannot quite understand how this works, but
'following' could be 'after' (following can mean after or as a result of) and 'after' is located in the answer.
'discernment' could be 'taste' (having discernment is having good taste) and 'taste' is found in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for aftertaste that I've seen before include "Consumer sensation" , "as the table is cleared?" , "Residue on the palate" , "What lingers in the mouth" , "Unpleasant feeling left behind" .)