On the other hand, Clojure is more production-ready than most Schemes, in my experience -- this sentence being one of the reasons as the Scheme landscape is very fragmented, despite the standard(s). For example, in my own SICP journey (http://eli.thegreenplace.net/tag/sicp) I was using PLT Scheme, one of the most usable implementation back in the day. Unfortunately it forked off into a slightly different language - Racket - since then. So YMMV
Scheme is simpler though, and probably more approachable for a beginner. The hosted nature of Clojure means you'll need a decent understanding of the underlying JVM to understand errors--the first time you get a stack trace you're going to seriously question your choice. Also Clojure's syntax is more complicated (but really, not at all complicated compared to Java, C#, Python, etc.).
You should be able to pick up Clojure pretty quickly if you're already familiar with Scheme, the programming style is pretty similar.