Related Clues:

• Hold in one's hand
• Grip
• Hold firmly
• Take eagerly
• Grab onto
• Latch onto
• Get a handle on
• Clutch tightly
• Get a hold of
• Take firm hold
• Seize firmly - or understand (5)
• Get to grips with a great little poisonous thing
• Grok
• Know the ins and outs of
• Understand what's good on file