Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
1. clausus, a, um, Part. and P. a., from claudo.
2. Clausus, i, m., a Sabine proper name: Attus Clausus, ancestor of the gens Claudia, Liv. 2, 16, 4; 10, 8, 6; Verg. A. 7, 707; Tac. A. 4, 9 al.