What purpose does the "a" serve here? Also is "lán" a noun like "lot" is in "a lot" or is it an adjective?
Never mind, I actually found an entry for "a" that, I believe, answers both of my questions, haha. If it piques anyone else's interest, here is the entry direct from teanglann.ie: "a7, particle used with abstract nouns denoting degree. (Lenites) How. A ghéire a labhair sí, how sharply she spoke. Bhí iontas orm a dhonacht a bhí sé, I was surprised that he was so bad. Agus a dhaoire a chosain siad dó, considering how dearly they cost him."
It seems like this "a" can be translated as "how" or "so," as an intensifier.