Crossword Genius

Drone in America having completed miles (5)

Ross

I believe the answer is:

thrum

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

'drone in america' is the definition.
'thrum' can be an answer for 'drone' (I've seen this before). I am not sure about the 'in america' bit.

'completed miles' is the wordplay.
'completed' becomes 'thru' (I can't explain this - if you can you should give a lot more credence to this answer).
'miles' becomes 'm' (common abbreviation).
'thru'+'m'='THRUM'

'having' acts as a link.

Can you help me to learn more?

(Other definitions for thrum that I've seen before include "Drone; tap idly" , "bit of thread" , "Drum with fingers - bits of coarse yarn" , "Continuous rhythmic humming sound" , "Strum; thread end" .)

I've seen this clue in The Telegraph.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.