arson clauseglossary / ARSON CLAUSE arson clause. Insurance. An insurance-policy provision that excludes coverage of a loss due to fire if the insured intentionally started the fire. [Cases: Insurance 2166(3). C.J.S. Insurance § 922.] 词条贡献者 双语律师Matthew,国际知名法学院法律专业,擅长翻译各类与商业秘密起诉与调查相关的法律文件。