Related Clues:

• Morse might have eaten it with chips
• Seafood offering unlimited possibilities?
• Pearl-producing bivalve
• Maybe grey, but the world may be yours
• Pearl grower
• Boy's terrific bags a pale pink
• Funny story about European shellfish
• Secretive person's source of profit
• Delicacy of deep regrets you're holding back
• Funny story about English person unwilling to communicate
• Regrets you harbour when looking back rather grey
• A world of personal opportunities?
• Pearl-making mollusc
• Food shellfish
• Colour of refurbished storey