Welcome misko,
I'm Les40 from the Northwest of England.
It' simple really.
Always make sure you type the clue as you see it in your xword, mention what paper it is if possible, and how many letters it is and any that you already have.
Not too many profanities please, you may offend some of the posters.
And with certain crosswords, postera don't like you to send back the answer straight away, but maybe give another clue towards hinting at the answer,
In a nutshell, just keep your eye on the site and you will pick it up soon enough,
It's OK to have banter with the people (You will see that soon enough pal).
You will get to know some of the best compilers and Cryptic crossword solvers (Cruciverbalists) in the land,
Some real wordplay magicians.
Have fun.