Answer: mudlark

AnswerCrossword Clue
MUDLARK"The ...," starring Irene Dunne.
mudlarkto work or play in mud
mudlarkeither of two black and white birds, Grallina cyanoleuca, of Australia, or G. bruijni, of New Guinea, that builds a large, mud nest
mudlarkto grub or play in mud
mudlarkperson who gains a livelihood by searching for iron, coal, old ropes, etc., in mud or low tide
mudlarkstreet urchin