Giving clarification

what I'm trying to say is (that)...

Well,

the point I'm trying to make is (that)...

think

Well, I I what I mean is (that)... (tentative)

suppose

What I mean is (that)...

(both direct)

What I'm saying is (that)...

All I'm trying to say is (that)... (informal)

Well, to be frank (strong, blunt)

frankly