In operation's the way to be displayed (2,4)
I believe the answer is:
on show
'be displayed' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.
'in operation's the way' is the wordplay.
'in operation's' becomes 'on's'.
'the way' becomes 'how' (how something is done).
'ons'+'how'='ON SHOW'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for on show that I've seen before include "being demonstrated" , "Exhibited" .)