Possible Clues:

• Not wanting to talk about it turning up on coin
• Keeping quiet about it, returned the money
• Reserved right to call back medical specialist?
• Quiet's just what's needed over in broadcast centre
• There's little to be said if it turns up in here not long ago
• Hardly loquacious
• The wallflower is, with nitre etc scattered around
• Saying little when it turns up in the centrefold
• Fresh, it's put back inside -- not ready to open up
• Guarded about money, holding it back