Theatre skill doubled energy in comic dialogue (8)
I believe the answer is:
Here is my best explanation:
'comic dialogue' is the definition.
(I've seen this before)
'theatre skill doubled energy' is the wordplay.
'theatre' becomes 'rep' (I've seen this before).
'skill' becomes 'art' (I've seen this before).
'doubled' indicates the doubling of some letters.
'energy' becomes 'e' (physics symbol as in E=mc2).
'e' doubled is 'ee'.
'in' is the link.