Who was the partner when the surface was clay, and outcome was runner-up, with a score of 4–6, 1–6?
CREATE TABLE "doubles_6_3_3" (
  "outcome" text,
  "date" text,
  "tournament" text,
  "surface" text,
  "partner" text,
  "opponents" text,
  "score" text
);
SELECT "partner" FROM "doubles_6_3_3" WHERE "surface"='clay' AND "outcome"='runner-up' AND "score"='4–6, 1–6';