Mum's with it -- she supplies things for others (10)

I believe the answer is:

mothership

'she supplies things for others' is the definition.
(a mothership maintains or equips other ships)

'mum's with it' is the wordplay.
'mum's' becomes 'mothers'.
'with it' becomes 'hip' (I've seen this in other clues).
'mothers'+'hip'='MOTHERSHIP'

I've seen this clue in The Telegraph.

Want a hint initially instead of a full solution? Install my app