Horrendous recital piece (7)
I believe the answer is:
article
'piece' is the definition.
(I know that article is a type of piece)
'horrendous recital' is the wordplay.
'recital' anagrams to 'ARTICLE'.
However, I am unsure how the anagram is indicated.
Can you help me to learn more?
(Other definitions for article that I've seen before include "to cause amusement, say, to a king" , "Division" , "Object and newspaper story" , "Maybe the" , "leader" .)