CREATE TABLE "doubles_21_9_titles_11_runners_up" (
  "outcome" text,
  "date" text,
  "surface" text,
  "partner" text,
  "opponents" text,
  "score" text
);

Question: Which Partner with the surface of Clay ended up as a runner-up with a score of 1–6, 6–4, [10–12]?
SQL: SELECT "partner" FROM "doubles_21_9_titles_11_runners_up" WHERE "surface"='clay' AND "outcome"='runner-up' AND "score"='1–6, 6–4, [10–12]';