Possible Clues:

• Your old master embraced by Oscar in shrub
• 'Blows on a bank with abandon, by the sound of it (4,5)'
• It comes to blows at the bank
• Where the bank comes to blows with 1down, by the sound of it, in no tame manner (4, 5)
• The sound of high jinks blowing on the bank
• Sound of excessive revelry in the plant
• I know a abank where such a sound of revelry comes to blows
• Sounds like uncontrolled behaviour at the bank