Assumes freak trends go at random (5,3,7)

I believe the answer is:

takes for granted

'assumes' is the definition.
(taking for granted is a kind of assuming)

'freak trends go at random' is the wordplay.
'random' indicates anagramming the letters.
'freak'+'trends'+'go'+'at'='freaktrendsgoat'
'freaktrendsgoat' with letters rearranged gives 'TAKES FOR GRANTED'.

I've seen this clue in The Telegraph.

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