Possible Clues:

• Buy tea bag on the way round
• Tea in small bag's secure
• Acquisition of tea-bag?
• Buy tea bag outside
• Acquire grip?
• In contract, check having a firm grasp
• Bag full of tea that has gone through the barcode reader?
• Foothold established by Nonconformist church in stage of development
• Buy almost perfect hound
• By the sound, you'll find the birds on there at night, by the sound of it