A dream featuring a nutcracker (but not being used) is telling you that, whatever your hangups may be, they can be overcome by intelligent application of the means you have at hand.
[1]To dream about a nutracker means you are trying to get to the core of a matter or situation.
A dream about cracking open nuts can be a good omen, foretelling luck with money.
[2]1. Family troubles, arguments are in the offing.
2. A happy omen regarding intimate affairs.
3. Wordplay regarding someone who is overbearing.
[3]