The most common and most likely answer to this crossword clue is the 13 letter word ILLUSTRATIONS
I've seen this crossword clue in The Daily Telegraph
I
L
L
U
S
T
R
A
T
I
O
N
S
Buddy explains!

The straight part
We know that "drawings" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case drawings = illustrations.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.
Crossword Answer definitions
ILLUSTRATIONS noun- The act of illustrating; the act of making clear and distinct; education; also, the state of being illustrated, or of being made clear and distinct.
- That which illustrates; a comparison or example intended to make clear or apprehensible, or to remove obscurity.
- A picture designed to decorate a volume or elucidate a literary work.
- A calculated prevision of insurance premiums and returns (life insurance)