Recollection of horse eating pork — is that witty? (7)
I believe the answer is:
epigram
'recollection of horse eating pork is that witty?' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'recollection of horse eating pork' is the wordplay.
'recollection of' shows that the letters should be reversed in order (recollect letters in the opposite direction).
'horse' becomes 'mare' (mare is a kind of horse).
'eating' is an insertion indicator.
'pork' becomes 'pig'.
'mare' reversed gives 'eram'.
'eram' enclosing 'pig' is 'EPIGRAM'.
Can you help me to learn more?
(Other definitions for epigram that I've seen before include "Witty or sarcastic saying" , "Brief witty saying" , "Pithy remark - grim ape (anag)" , "Bon mot" , "Pithy and witty saying" .)