Table schema:
CREATE TABLE table_name_45 (partner VARCHAR, score VARCHAR, surface VARCHAR, outcome VARCHAR)

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 table_name_45 WHERE surface = "clay" AND outcome = "runner-up" AND score = "1–6, 6–4, [10–12]"