Related Clues:

• Market upsurge or crash?
• Blair's reported prosperity
• Fireworks noise
• Heads of big old organisations mainly flourish
• Nautical spar that can’t be bust?
• "Baby" or "sonic" follower
• *"KA-BLAM!"
• Good news for the economy
• Economic spurt
• [Out of nowhere!]
• ___ and bust
• [There you have it!]
• Sonic ___
• To express disapproval of Mike leads to explosion
• Loud noise as heart ripped from chest