Learn English – Meaning of look up to God and its usage

There is nothing wrong with saying You are a good man.

After he's told you he's been to the cemetery, you could open up the conversation by saying I see you've gone there often. You must really miss whomever. What were they like? Sometimes it is good to get the bereaved to recount the good memories.

What's most important is he will feel what your intention is when you talk with him. Be of good heart and good intentions.

I realize this is a sensitive subject, it's just a suggestion, please no flaming...

There is no doubt in my mind that he meant "I'm free", or that he had time to talk.

Here are some relevant definitions I found.

clear

6. a : to free from obligation or encumbrance

clear
not blocked or filled; open or available:
The only time the doctor has clear today is 3:30—can you make it then?

However, from personal experience, I don't feel like "I'm clear" is common or popular. I feel like clear is usually used in the following sense

I've cleared my schedule.

I think "I'm free" is much more common than "I'm clear". Regardless, he did mean that he has time to talk because he was using the definition(s) given above.