Let me help you manage your invoice, jenn.

You mentioned summarizing the client's time in one line item on the invoice. If the text is displayed on another line and you want to remove it, click the delete icon on the right.

However, if this isn't what you meant, I'd appreciate it if you could provide us with a screenshot of your concern to give you an accurate solution. 

For further information about managing your customer's billable expenses, check out this link: Delete customer with unbilled charges in QuickBooks Online.

Additionally, I'll share this article to help you correct your transactions in QuickBooks Online: Void or delete transactions in QuickBooks Online.

Hit reply in the thread if you have follow-up questions about managing your invoices. I'll be here to help. Take care!