The standard above Silver? (5,5)

I believe the answer is:

jolly roger

I'm a little stuck... Click here to teach me more about this clue!

'the standard' is the definition.
(I've seen this before)

I don't understand the remainder of the clue.

(Other definitions for jolly roger that I've seen before include "Pirate flag" , "Pirates' flag" , "In the main a fearful sight" , "standard not welcomed in the main" , "standard for boarders?" .)

I've seen this clue in The Times and The Sunday Times.

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