Make a world fit for a flyer (6,4)

I believe the answer is:

meadow lark

I'm a little stuck... Click here to teach me more about this clue!

But I can't explain it at all! Could you help me understand?

(Another definition for meadow lark that I've seen is " US singer".)

I've seen this clue in The Hindu.

Want a hint initially instead of a full solution? Install my app