The most common and most likely answer to this crossword clue is the 4 plus 3 letter word CLIP ART
I've seen this crossword clue in The Daily Telegraph
C
L
I
P
A
R
T
More clues leading to the result CLIP ART
- Graphics files stack up endlessly among pending purchases
- Graphic images the norm in first of Chinese literature
- Beginnings of cool line in some computer images
- Creative hairstyling, you might say, in stock pictures
- Carry across border readily available illustrations
- Images in online gallery showing sauce guzzled by bear
- Electronic images bound to fill shopping trolley
Buddy explains!
The straight part
We know that "readily available illustrations" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case readily available illustrations = clip art.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.