Related Clues:

• Hidden
• Stockpiled
• Salted away
• Used a payment plan
• Hidden away
• Squirreled away
• Stashed away
• Stored pending payment
• Stowed for future use
• Kept for a rainy day
• 'Laid away, stashed (6)'
• Laid away, stashed
• That sounds like what you did with the cheque you had hidden away like this
• Hidden, long hidden inside code oddly
• Baddie hugging revolutionary 5 Across