Possible Clues:

• Actress Shields
• 25, singular mate of 25 (we hear)
• War poet
• Rupert seen to be holding the castle
• Rupert Bear, say?
• Rupert —, English war poet
• Poet, old, that cleaned out houses
• He achieved redemption in 1772
• Poet's right out of place in competition for novelists
• Shields in movies