when your application has the mouse click action enabled, then definitely while spying through BluePrism you will be able to identify the element type (text.combo.button) etc..
If I were you, I will first spy the element.. Add a Navigate action in your process, drag this element in the Navigate action, see what are the options blueprism is providing (click, double click) etc.. Choose the appropriate one and then step through to see if this is clicking or not.
Next item when you are posting, please paste the error to give us more info.