I assume you're talking about wearing them over disposable diapers, and you're requesting clear because you want to see your diaper.
Plain old plastic pants do their best work over cloth diapers, because pee that ends up in the plastic pants still has a chance to be absorbed--unless the cloth is saturated anyway. When worn over a disposable, they just break the story of your leak into Leak: Part 1 and Leak: Part 2. Once pee leaks out of your diaper into your plastic pants (Part 1), it rolls around until you change or until it escapes through a leg cuff or over the waistband (Part 2). If you're aware of Part 1 happening and you take the opportunity to change ASAP, then great. The plastic pants helped. On the other hand, if wearing plastic pants emboldens you, and you start changing less frequently, Part 2 is going to happen.
If you want serious leak insurance, your best bet will be to get some lightly lined plastic pants--something with a layer of fabric on the inside. This will actually absorb minor leakage from your inner diaper so that it doesn't just roll around looking for an exit. Alternatively, you can wear something minimally absorbent over your diaper and under your plastic pants. Regular underwear is something. Obviously both of these options are going to hide your diaper.
TL;DR: Go for it, but with reasonable expectations.