Meet in a rearranged theatrical occasion (7)
I believe the answer is:
matinee
'theatrical occasion' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'meet in a rearranged' is the wordplay.
'rearranged' indicates an anagram.
'meet'+'in'+'a'='meetina'
'meetina' with letters rearranged gives 'MATINEE'.
Can you help me to learn more?
(Other definitions for matinee that I've seen before include "Daytime performance of play etc" , "Performance held in the afternoon" , "sort of jacket" , "in which players may appear?" , "early "performance"" .)