CREATE TABLE table_name_7 (partner VARCHAR, surface VARCHAR, opponents_in_the_final VARCHAR)

Who's the partner that played against Alicia Molik Mara Santangelo on clay?
SELECT partner FROM table_name_7 WHERE surface = "clay" AND opponents_in_the_final = "alicia molik mara santangelo"
SELECT "partner" FROM "table_name_7" WHERE "alicia molik mara santangelo" = "opponents_in_the_final" AND "clay" = "surface"