Crossword Genius

A fighting man I go to join up (6)

Ross

I believe the answer is:

solder

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

'to join up' is the definition.
(I've seen this before)

'a fighting man i' is the wordplay.
I cannot really see how this works, but
'man' could be 'sol' and 'sol' is found in the answer.
The remaining letters 'der' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

'go' is the link.

Can you help me to learn more?

(Other definitions for solder that I've seen before include "Fusible jointing alloy" , "Metal bond" , "Fusible alloy for joining metals" , "Join two metal surfaces, using an alloy" , "Join two metals with a melted alloy" .)

I've seen this clue in The Globe and Mail.
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.