2 Metaphors for cue

Tonight his cue was surly silence.

" "No," piped the party of reform, "All great results are ta'en by storm; Fate holds her best gifts till we show We've strength to make her let them go: No more reject the Age's chrism, Your cues are an anachronism; No more the Future's promise mock, But lay your tails upon the block, Thankful that we the means have voted To have you thus to frogs promoted.

2 Metaphors for  cue