Statement by weatherman and the rest in support (7)

I believe the answer is:

metcast

'statement by weatherman' is the definition.
(meteorological forecast)

'and the rest in support' is the wordplay.
'and the rest' becomes 'etc' (et cetera).
'in' means one lot of letters goes inside another.
'support' becomes 'mast'.
'etc' going into 'mast' is 'METCAST'.

I've seen this clue in The Times.

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