The most common and most likely answer to this crossword clue is the 6 letter word STELAE
S
T
E
L
A
E
More clues leading to the result STELAE
Buddy explains!
The straight part
We know that "tablets" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case tablets = stelae.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 STELAE mean?
STELAE noun- An obelisk or upright stone pillar, usually as a primitive commemoration or gravestone