Join together and turn back towards setting sun, briefly (3)

I believe the answer is:

sew

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

'join' is the definition.
The answer and definition can be both to do with contact as well as being verbs in their base form.
Maybe they are linked in a way I don't understand?

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for sew that I've seen before include "Do some needlework" , "Fasten with needle and thread" , "Stitch with needle and thread" , "Make stitches" , "Use a needle and thread" .)

I've seen this clue in The Irish Times.

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.