1) Disclose 2) Free or relieve of a burden 3) Remove the burden from 4) Take 5) Take the burden off 6) To free from a burden Found on https://www.crosswordclues.com/clue/unburden
to free from a burden. · to relieve (one's mind, conscience, etc.) by revealing or confessing something. · to cast off or get rid of, as a burden or something burdensome; disclose; reveal: He unburdened the worries that plagued him. Found on https://www.infoplease.com/dictionary/unburden