Freak produces Number One for tenor with hoofer dancing (3,3,4)
I believe the answer is:
hit the roof
'freak' is the definition.
I know nothing about this answer so I can't tell whether this works.
'number one for tenor with hoofer dancing' is the wordplay.
'number one for' becomes 'hit' (I can't justify this - if you can you should give a lot more credence to this answer).
'tenor' becomes 't'.
'with' is a charade indicator (letters next to each other).
'dancing' indicates an anagram.
'hoofer' is an anagram of 'heroof'.
'hit'+'t'+'heroof'='HIT THE ROOF'
'produces' acts as a link.
Can you help me to learn more?
(Other definitions for hit the roof that I've seen before include "Blow up" , "Lose patience completely" , "and one's top" , "end up breaking tiles?" , "Go mad" .)