Queen palms love fertilizer AND micronutrients like soluable iron, magnesium, and zinc. They usually love water but not waterlogged roots. Your county extension agent can test your soil for you, or alternately you can send it somewhere like waters laboratories or A and L laboratories.

I live in palm country. Palms don't grow too well in clay-like soil. They grow better if the existing clay soil is mixed with sand but would even be a better idea if the sand is also incorporated into your overall landscape. Palm roots do not like the tightness and dampness in roots too much. Try the sand mix or even some gravel tilled into your clay soil. It should take care of the problem. Our clay-like land areas here do not have palms but instead have a lot of grass and some pines but very little. Clay areas often dry out because of severe heat and even with the vegetation, which is very little at that, fires get to them during the dry season. They don't hold moisture too well and cause run-off of mud into our seas and rivers during the rainy season. Clay soil here however is great for growing pineapples, I hear. You should try that.