Cryptic crossword clue
Raw rock from Who revelatory 3

The most common and most likely answer to this crossword clue is the 3 letter word ORE

I've seen this crossword clue in Financial Times
O
R
E


Buddy explains!

The straight part
We know that "Raw rock" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case raw rock = ore.
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 ORE mean?

ORE noun
  1. Rock or other material that contains valuable or utilitarian materials; primarily a rock containing metals or gems for which it is typically mined and processed.

Latest crossword clues with full explanations