The most common and most likely answer to this crossword clue is the 6 letter word LAXITY
I've seen this crossword clue in The Guardian
L
A
X
I
T
Y
More clues leading to the result LAXITY
- Lack of rigour by non-professionals boxing
- Carelessness in kiss stolen by ordinary people
- Sloppiness from the French kiss, one totally discontented
- Freedom of position including kiss before sex
- Carelessness of non-specialists — one gets cross inside
- Leniency is unknown among the non-clerical
- Permissiveness of times shown in non-church people
- Neglect it after cross is in place
- Ten invested in non-clergy’s carelessness
- Reportedly miss big town’s laid-back attitude
Buddy explains!

The straight part
We know that "laid-back attitude" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case laid-back attitude = laxity.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 LAXITY mean?
LAXITY noun- The state of being lax; looseness, lack of tension.
- Moral looseness; lack of rigorousness or strictness.