Crossword Clue:

An ironclad

Answer	Crossword Clue
PROVEN	Like an ironclad case
FINDSLOOPHOLES	Cracks an ironclad contract, perhaps
ARMORED	Ironclad.

OPENANDSHUT	Ironclad
RIGID	Ironclad
REFUTABLE	Hardly ironclad
THEMERRIMAC	Famous ironclad.
PROOF	Ironclad evidence
MONITOR	Historic ironclad.
MERRIMAC	Historic ironclad.
MONITOR	Early ironclad

ARMORPLATES	Ironclad vessels' covering
MARA	Kate of "Ironclad"
MONITOR	Merrimac's ironclad foe
MONITOR	Civil War ironclad
MONITOR	Captain Ericsson's ironclad.
ALIBI	Ironclad defense, usually
HOGIN	... armor (unwieldy ironclad)
MERRIMAC	The South's ironclad

USS	... Monitor (Civil War ironclad)
ALIBI	It may be ironclad
EADS	Ironclad steamship builder James
ALIBI	This is sometimes ironclad
ALIBI	It'll fly if it's ironclad