What was the score of the final in which Melanie South played with partner Remi Tezuka on a clay surface?
CREATE TABLE "doubles_24_21" (
  "outcome" text,
  "tournament" text,
  "surface" text,
  "partner" text,
  "opponent_in_the_final" text,
  "score" text
);
SELECT "score" FROM "doubles_24_21" WHERE "surface"='clay' AND "partner"='remi tezuka';