Decretal

1 clue
Papal letter
Similar answers:
Acetal
Acetals
Aidedecramp
Alkalimetal
Alkalimetals
Allmetal
Assetallocation
Babymetal
Barexaminetalkdresser
Basemetal
Basemetals
Bellmetal
Betall
Blackmetal
Bridletalk
Canneswetalk
Canwetalk
Centripetal
Chivetalk
Chivetalkin