escape clause
Noun
Meaning
escape clause (plural escape clauses)
(figuratively) Any clause, term or condition in a contract or statute that avoids the application of a provision
Synonym: safety clause
Synonyms
Examples
Amazon *has* offered an escape clause – for the entire first 90 days of the system.
Well, knowing myself only too well, I built in an escape clause to my “No drinking in January” rule.