Felix perhaps let out who's performing in exhibition (6,4)

'exhibition' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'felix perhaps let out who's performing' is the wordplay.
'felix' becomes 'cat' (I've seen this in other clues).
'perhaps' indicates anagramming the letters.
'out' is an insertion indicator.
'performing' indicates anagramming the letters (the letters move around or 'perform').
'let' with letters rearranged gives 'tle'.
'cat' inserted into 'tle' is 'cattle'.
'whos' anagrammed gives 'show'.
'cattle'+'show'='CATTLE SHOW'

'in' acts as a link.

Can you help me to learn more?