Answer: reciprocal

AnswerCrossword Clue
RECIPROCALInterchangeable
RECIPROCALMutual
RECIPROCAL... Trade Agreements.
RECIPROCALWorking both ways, as tariff pacts.
RECIPROCALKind of trade agreement.
reciprocalgiven and received in return; mutual
reciprocalacting in return / something in a reciprocal relationship to another