If my question was marked as unclear and I have reworked it what needs to be done to either:
Get it approved
When you first edit a closed question it will automatically be submitted to the review queues. Sufficiently high-rep users have the opportunity to view the new version and vote to re-open it or leave it closed.
Editing is the only approved method of fixing a question, and you should not resubmit.
If you repost it will be marked as a duplicate of the original. Deleting the original and re-posting is also discouraged, and when noticed a moderator will un-delete the original so that the new instance can be marked as a duplicate.