Predestine the concoction of more food (8)

I believe the answer is:

foredoom

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'predestine' is the definition.
The definition and answer can be both to do with communicating as well as being verbs in their base form.
Perhaps they are linked in a way I don't understand?

'concoction of more food' is the wordplay.
'concoction of' indicates anagramming the letters (I've seen 'concoction' mean this).
'more'+'food'='morefood'
'morefood' is an anagram of 'FOREDOOM'.

'the' acts as a link.

Can you help me to learn more?

I've seen this clue in The Irish Independent.

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