Rosalind - 6:10 pm on May 26, 2012 (gmt 0)
AndyA, repetition isn't always clarification. More often it's a style fault when you say something, and then repeat it using different words. I'm not talking about summarising an article at the end to drive home a point, or including too many details. What I mean by waffle is all the words that are objectively redundant.
I've been looking into editing software for novelists, and there are various offerings that analyse your text beyond the usual grammar and spelling checks. They can be surprisingly sophisticated. For instance, one common feature is picking up how often you use commonly overused words like "just", "actually", or "that". These have a place, obviously, but half the time you can cross them out and what's left is stronger and clearer.
Also, don't underestimate how often people write the same thing twice without meaning to.