Novelty tavern gets good cheer (10)
I believe the answer is:
innovation
'novelty' is the definition.
(I've seen this before)
'tavern gets good cheer' is the wordplay.
'tavern' becomes 'inn' (I've seen this in another clue).
'gets' says to put letters next to each other.
'good cheer' becomes 'ovation' (I am not sure about this - if you are sure you should believe this answer much more).
'inn'+'ovation'='INNOVATION'
Can you help me to learn more?
(Other definitions for innovation that I've seen before include "original" , "New idea" , "Something new" , "What's new" , "New product" .)