The crossword solutions for the term BIGGERS DETECTIVE are CHAN (4 letters), DERR (4 letters), EARL (4 letters), NATE (4 letters), and ALLAN (5 letters). These are all characters from the popular series of novels by EARL Derr Biggers, which feature the Chinese-American detective Charlie Chan. The other characters include his son, Lee Chan; his assistant, Jimmy Chan; his friend, Inspector Nate Derr; and his nemesis, criminal mastermind ALLAN Derr.