It is not an idiom, it is a description of one work day. The "honest" part just refers to doing something legal and above-board instead of illegal or sneaky. You often hear this phrase used in the negative, as in "He's never done an honest day's work in his life," meaning that the person is lazy and probably getting money in some sort of sneaky or illegal fashion.
Literally, "an honest day's work" means the amount of work expected by an employer who pays workers by the day on condition that they to work diligently. This is often used figuratively, to refer to a similar amount of diligent work by a person for his own goals, when no pay is expected.
It is not an idiom. "An honest day's work" means what it says. It means you work hard and honestly for a dollar or to achieve a good outcome doing your own work at home or doing volunteer work. It means hard work and done well. It also means work not done by crime.
It's not an idiom because you can figure out the meaning if you think - if you're running around in circles, you're not getting anywhere. It's a metaphor for fruitless work.
To know that I am earning my pay. An honest days work.
When something is on the fritz, it means it's broken, or doesn, work anymore, out of commission.
exhausted, imagine beating something rough until it has softened. It expresses the similarity.
The idiom "work itself out" means that a situation will resolve or improve on its own without requiring direct intervention or action. It suggests a belief in the natural course of events to lead to a positive outcome.
Elbow grease is an idiom or term used meaning to work hard, to put more physical effort into a job or task.
Then share with your potential employer the times that you are available. Be honest because if you are hired, this is how they will determine your work schedule.
Work out a problem.
A woman hired for odd work or for single days.
One such idiom is "Don't look a gift horse in the mouth."