Rather than avoiding cliches, I suggest you first focus on being original, then catch (and remove) most cliches when editing.
If you are writing the novel primarily as entertainment, then some cliches are acceptable, but avoid too many, and avoid tired cliches. ("Tired cliche," by the way, is a tired cliche.) If you want to be more literary, avoid cliches altogether, or play with them in a way that turns literature into Metafiction. (Read John Gardner's "The Art of Fiction" for more on literature and metafiction.)
To go further, we have to look at cliches of plot, of characters, and of phrases.
In plot, entertaining genre fiction is defined by a somewhat cliched plot. You want to meet reader expectations by being familiar so they feel safe and happy. But don't bore them by being completely predictable. Lay out a plot that is not a complete cliche. There must be some unusual twists and turns - either one big one, or several interesting ones. And these should arise from the depths of the beings of your characters.
In characters, make your central character real, whole people (or elves, or demons). Do not let any of your central characters be flat or cliched. Your minor characters will have to be flat, but don't make them particularly typical or usual. That's character cliche, and its boring.
Cliched phrases are strings of words that people have heard too many times before. People either glaze over their meanings, or get bored. Cliches of this sort will creep in. Kill them by editing before you publish.
It can help to turn cliches upside-down or on their heads, flip them, kick them, mix them intentionally, give them a good beating, and deliver them to your reader, preferably by racing by in a car and throwing them out the door. (This is an example, except I went a bit too far at the end.)