The most common and most likely answer to this crossword clue is the 6 letter word DAUBED
D
A
U
B
E
D
More clues leading to the result DAUBED
Buddy explains!

The straight part
We know that "Crudely" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case crudely = daubed.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 DAUBED mean?
DAUBED verb- To apply (something) to a surface in hasty or crude strokes.
- To paint (a picture, etc.) in a coarse or unskilful manner.
- To cover with a specious or deceitful exterior; to disguise; to conceal.
- To flatter excessively or grossly.
- To put on without taste; to deck gaudily.