Who is the Opponent in the final of the match played on Clay Surface with a Score in the final of 4–6, 3–6?
CREATE TABLE "singles_11_5_6" (
  "outcome" text,
  "date" text,
  "tournament" text,
  "surface" text,
  "opponent_in_the_final" text,
  "score_in_the_final" text
);
SELECT "opponent_in_the_final" FROM "singles_11_5_6" WHERE "surface"='clay' AND "score_in_the_final"='4–6, 3–6';