Why Joel and Beck are terribly close (5,2,4)
I believe the answer is:
cheek by jowl
'close' is the definition.
(similar in meaning)
'why joel and beck are terribly' is the wordplay.
'and' is a charade indicator (letters next to each other).
'are terribly' indicates an anagram.
'why'+'joel'+'beck'='whyjoelbeck'
'whyjoelbeck' anagrammed gives 'CHEEK-BY-JOWL'.
(Other definitions for cheek by jowl that I've seen before include "In close proximity" , "closely linked" , "Side by side, close" , "Close together" , "In immediate proximity" .)