Yes, I remember Clemence well. I always used to say he was worth at least 10 points a season to us, and that was in the days before 3 points for a win. He had a few stinkers every now and then, but as often as not they tended to be for England, fortunately. But what he did have was total dominance of his 6-yard box - very rarely did we concede from crosses or corners as Clem came for everything, usually catching the ball as well, not punching it. And God help anyone who got in his way - even teammates. Tommy Smith often commented that even though he'd been clattered a few times by Clemence, his defenders wouldn't want it any other way.
I used to drink in The Supporters' Club in Lower Breck Rd with my dad on matchday. I dunno if it's still there, but there was a giant portrait of Clemence on one of the walls, green jersey, and red shorts and socks, at full stretch grasping a ball one-handed in a manner you just don't see nowadays. He had everything. I think he'd have loved the backpass rule as he used to play outfield in 5-a-side training games (which is what Liverpool used to mostly do back in the day under Shankly and Paisley) and was, as legend had it, more than decent enough to have made it as an outfield player in the lower leagues according to several of his teammates.
And, with that last comment we come back to Ally and I say this - Becker is as good as Clemence, and I cannot offer him a better compliment.