I'm not a master of Alt 1 by any stretch, but it definitely helps me when screenshotting my achievements or for clues. Here is a basic guide to using it for Clue Solving.
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runeapps.org/alt1
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Scroll down to Download Alt1
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Once downloaded and open, this should come up in your RS screen at the top.
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These are all the options. Click clue solver.
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This opens. Have the clue open on your screen and click unlock any.
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It will show you the answers, clue dependant.
Please feel free to add to this guide. E.G, list of clues it does work with and what ones it wont.