The most common and most likely answer to this crossword clue is the 7 letter word GLOSSED
G
L
O
S
S
E
D
Buddy explains!

The straight part
We know that "Painted brilliantly/commented on" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case painted brilliantly/commented on = glossed.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 GLOSSED mean?
GLOSSED verb- To give a gloss or sheen to.
- To make (something) attractive by deception
- To become shiny.
- To add a gloss to (a text).
- Having a gloss.