Answer: unpegged

AnswerCrossword Clue
UNPEGGEDVariable, as exchange rates
UNPEGGEDFreed, in a way
UNPEGGEDLike some exchange rates
unpeggedUNPEG, to remove the pegs from
unpeggedCease to maintain a fixed relationship between (a currency) and another currency
unpeggedUnfasten by the removal of pegs