Related Clues:

• Immediate - aim
• Straight, without diversion
• Straight - guide
• Crisp and brief
• Far from talkative
• Short and sharp
• Crisp
• Show where to go — straight
• Lead the orchestra
• Manage without an intermediary
• Adhering to Strunk and White's advice 'Omit needless words'
• Curtly brief
• As the crow flies
• Like tweets, by necessity
• Elliptical, in a way