The following is not intended as legal advice, as you and I do not have an attorney-client relationship, but simply as information intended to be helpful. If you need a legal advice, consult an attorney who holds Texas licensure.
It sounds like your child has income that would be reported on Schedule A of your Federal Income Tax Return. Generally, with respect to such businesses, the taxpayer may deduct his or her reasonable and necessary business expenses. So with respect to any particular item of expenditure connected to your daughter's entertainment business, the question is, is it a reasonable and necessary expense from the perspective of her business activities?
A certified public accountant who prepares Federal income tax returns would be the best person to answer questions regarding specific items of expense. Good luck.