I just asked a question a moment ago, the subject of which was "Is there a word for taking an (possibly undeserved) authoritative tact?"
And I immediately had the follow up question of "was that sentence grammatically correct?" Namely, does the article a/an connect to what's in the parentheses (in which case I should have used "a") or to the adjective that follows, which the article actually refers to (in which case I did the right thing).