Curse mass beer delivery (11)

I believe the answer is:

malediction

'curse' is the definition.
(malediction is a kind of curse)

'mass beer delivery' is the wordplay.
'mass' becomes 'm' (symbol used in Physics e.g. f=ma).
'beer' becomes 'ale' (type of beer).
'delivery' becomes 'diction' (I've seen this in other clues).
'm'+'ale'+'diction'='MALEDICTION'

(Another definition for malediction that I've seen is " Calling down a curse - lime not acid (anag)".)

I've seen this clue in The Times.

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