The most common and most likely answer to this crossword clue is the 6 letter word AIRMAN
A
I
R
M
A
N
More clues leading to the result AIRMAN
- Pilot bombing marina
- Flier in marina distributed
- Woman dubbed “la Douce” hugged by an aviator
- Marian trained to be a pilot, perhaps
- A female name for
- Marina arranged to produce flier
- Marina’s tipsy pilot
- Take on board train an erk
- Flyer: 25 per cent off in River Island
- Tunesmith, perhaps one with his head in the clouds?
Buddy explains!

The straight part
We know that "erk" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case erk = airman.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does AIRMAN mean?
AIRMAN noun- A pilot of an aircraft.
- A member of an air force.
- A person of a rank in the U.S. Air Force above airman basic and below airman first class.
- A naval seaman, especially one in the U.S. Navy, who works on and/or handles aircraft.