The word is "currant."
abreastabstainabridgeacclaimacrobataddressadmiredadornedadoringaerobicafflictalignedallowedamassedamendedamateurangelicanswersappealsappliedapprisearguingarousedarrangeartworkashtrayassumedattractaverageaviatoravoiding
A seven letter word that starts with D and ends with T: decrypt
augment
insurer
AttendsAmendedAmountsallowed
Include
attired
Duchess is a seven letter word.
A seven (7) letter word that starts with M and ends with O: memento
alludedamendedawarded
descentdecideddiamonddiscarddiscorddividedelevateerasuregaininggrowingglowinghellishlateralliterallogicalmodicumoreganoreentertangenttrident
housing