The phrase 'is worth explaining' is correct and usable in written English.
You can use it when you want to emphasize that something is important enough to explain in detail. For example, "The complex process of how money is managed by banks is worth explaining."
It is worth explaining why.In this section Can Iran be stopped?
To understand this, it is worth explaining how nerve agents work.
Similarly, it is worth explaining why the gravity-based recentering mechanism of the RNC isolator is unique and it is not traditional.
It is worth explaining why the performance (in terms of EST) gap between the practical suboptimal scheme and the ideal optimal scheme is not so much significant.
It is worth explaining why the curve representing ACIR for an advanced transmitter and receiver rises steeply for low frequency separation, and then it falls down.
But witchcraft was just the thing students wanted to hear a bit more about from the pagan philosopher, so Lecture 40 begins like this: "Since last time I referred to the Thessalian women, it is worth explaining the practice, why people think wizards draw down the moon [at an eclipse], and why ordinary people beat on bronze.
That, for what it is worth, explains the obsession with whether the president should or should not have called the attacks terrorism.
A week or two after it took flight, it is still going, so it might be worth explaining what is actually going on.
And it's worth explaining why the loan is going toward a $12.7 billion acquisition, not just $10.25 billion, as the initial reports said.
For those unversed in music theory it may be worth explaining with a little more specificity what 12-tone music is and how it came about.
For the benefit of anyone who has never noticed Andy Capp's appearance in some 700 newspapers around the world, it may be worth explaining that he is well, what exactly?
