Partner of his

HERS

Think of the feminine possessive pronoun that pairs with a man’s.

The clue "Partner of his" is a simple possessive pronoun reference. "His" is the masculine possessive, so its natural counterpart is the feminine "hers." The answer plays on the idea of pairing opposites, like "his and hers," making it a straightforward fill-in. No hidden wordplay—just a direct match.