Old girl often in distress? (6)

I believe the answer is:

damsel

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

'old girl' is the definition.
'damsel' can be an answer for 'girl'. I am unsure of the 'old' bit.

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for damsel that I've seen before include "Maiden, often in distress" , "Young single woman" , "Young woman (archaic)" , "An old girl, often in distress" , "Maid" .)

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.