Arrangement for marriage: I’ll cook, providing nutritional energy (8-7)

I believe the answer is:

kilogram-calorie

'nutritional energy' is the definition.

'arrangement for marriage i'll cook' is the wordplay.
'arrangement for' indicates anagramming the letters (I've seen this in other clues).
'marriage'+'ill'+'cook'='marriageillcook'
'marriageillcook' with letters rearranged gives 'KILOGRAM-CALORIE'.

'providing' is the link.

I've seen this clue in The Independent.

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