Guardians promote her fast manoeuvre (6-7)

I believe the answer is:

foster-fathers

'guardians' is the definition.
(foster father is a kind of guardian)

'promote her fast manoeuvre' is the wordplay.
'promote' becomes 'foster' (fostering is a kind of promoting).
'manoeuvre' is an anagram indicator.
'her'+'fast'='herfast'
'herfast' anagrammed gives 'fathers'.
'foster'+'fathers'='FOSTER-FATHERS'

I've seen this clue in The Daily Express.

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