Possible Clues:

• Some paper used to keep notes in a botched survey
• Etonian squire involved in bit of market research
• Senora, quiet, in new search for answers?
• Inquire as to name changes by electronic form for use in statistical comparison
• One place to fill in answers
• List of inquiries
• Form of enquiries, not bothered about answer?
• After workout, equine star one on form perhaps
• Search on northern river keeps one in form
• No.1 mounts, kept by trained equestrian in form