Goes and covers roof and gates (10)

I believe the answer is:

turnstiles

'gates' is the definition.
(I know this)

'goes and covers roof' is the wordplay.
'goes' becomes 'turns' ('turn' can be a synonym of 'go').
'and' means one lot of letters go next to another.
'covers roof' becomes 'tiles' (covers a roof in tiles).
'turns'+'tiles'='TURNSTILES'

'and' is the link.

I've seen this clue in The Telegraph.

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