Yup.
As an aside, I was amazed that Clemenza was ever suspected of anything- he struck me as wholeheartedly loyal to the core.
He was absolutely loyal to the Don, but I think all bets are off about whether they, founding partners of the family, would be subservient to the Don’s sons.
As a personal anecdote, a few years ago while in Central Park, I saw Abe Vigoda quietly amble in and sit on a park bench ... I thought about going over, sit next to him, and say “I always thought it would be Clemenza”, but I didn’t have the nerve to do it. Oh well, would’ve been kinda amusing anyway :) He probably gets that sort of thing all the time and would have a laugh about it too