Possible Clues:

• Materials for writing
• Material used by writers — still, we hear!
• Static on the radio provides material for writers
• A tiny store specially designed for office materials
• Paper maybe not changing by the sound of it
• Piece of data, a single line added to one paper
• Get paper, perhaps, from halt on eastern railway
• Writing paper and envelopes etc. still picked up
• Writing stuff fixed, by the sound of it
• Staples etc firmly fixed, did you say?