The most common and most likely answer to this crossword clue is the 8 letter word IRONCLAD
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R
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More clues leading to the result IRONCLAD
- Impregnable, but damaged in cold rain
- Boy underneath smooth Conservative in ship
- Mocking boy, one I expelled, that’s heavily protected
- Absolutely guaranteed college boy can join club
- Rigid Conservative blocked Maggie’s sobriquet briefly
- Warship in this is fine?
- Invulnerable as band appearing in fringe
- Press caught boy in battleship
- Unassailable as one leaves sarcastic youth?
- Playing clarion before break of dawn is hard
Buddy explains!

The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does IRONCLAD mean?
IRONCLAD noun- A metal-plated ship, vessel, or vehicle.
- An armor-plated warship.
- Covered with iron, steel, or some metal, armor-plated.
- Solid or certain; not able to be disputed or questioned; irrefutable.
- Rigorous; severe; exacting.