Possible Clues:

• Bachelor's counterpart
• One turns at the top so that you always miss her
• The way she can get around with the rest, you'll always miss her
• She is unmarried
• Unorthodox priest admits two partners and one who hasn't a partner
• Old maid cuts up their odd bits only
• Sylvia Ashton-Warner's unmatched protagonist
• Short journeys for most of the academic year for one of those not in the union
• Unmarried person rests uneasily, keeping quiet at home
• Term for a woman such as Dickens’s Miss Havisham