Case with crowd riotous in hallowed institution (6,3)
I believe the answer is:
sacred cow
'hallowed institution' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
'case with crowd riotous' is the wordplay.
'with' is a charade indicator (letters next to each other).
'riotous' indicates an anagram.
'case'+'crowd'='casecrowd'
'casecrowd' with letters rearranged gives 'SACRED COW'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for sacred cow that I've seen before include "Person or institution held to be above criticism" , "one's above criticism?" , "Person, custom, etc unreasonably held to be beyond criticism" , "Facing this, carp not" , "Institution seen as above criticism" .)