Antonyms for the phrase "clamped down on" suggest a more lenient approach. Some antonyms include "relaxed," "loosened," "eased up," "softened," "moderated," and "lessened." These words indicate a shift away from strict control and restraint towards greater freedom and openness. While clamping down suggests a forceful restriction, antonyms suggest a more gradual easing of rules and regulations. In many cases, the appropriate approach may be somewhere in between clamping down and loosening up, depending on the situation and context. Effective leadership involves finding the right balance between control and openness to allow for growth and progress.