Possible Clues:

• Order to declare what to do with rotten food
• Don't participate, nursing depression: do you want to speak?
• What a teller might do with 30 across
• Snippets of information kept back by one racing spy: 'Tell me forthwith!'
• Come on, say it quickly - or expectorate
• Come on, say what you think - expectorate
• Tell of a bird in a stream
• EXpect oration to do this - tell it all
• Come on, say what's on your mind - expectorate if you wish
• Say it quickly - even expectorate