Cook meat and chill bananas for bar food? (4,9)
I believe the answer is:
milk chocolate
'bar food?' is the definition.
(bar of chocolate)
'cook meat and chill bananas' is the wordplay.
'and' means one lot of letters go next to another.
'bananas' indicates anagramming the letters (informal term for mad).
'cook'+'meat'+'chill'='cookmeatchill'
'cookmeatchill' is an anagram of 'MILK CHOCOLATE'.
'for' is the link.
(Other definitions for milk chocolate that I've seen before include "Confectionery" , "Dairy sweet" , "bar food?" , "Dairy product sold in bars" .)