Do others agree there appears to be an error in the clue for 15 across? Surely it should read stone needs tearing apart (not taken apart), Tearing is an anagram of granite which presumably is the answer.
.It must be granite to fit in with the clues down.Apart means it must be an anagram and there is no stone that I can come up with that is an anagram of " taking" , which is only six letters anyway.
They must have meant "tearing".
Yes I agree..a misprint.