Crossword Genius

Part with land required for port (6)

Ross

I believe the answer is:

sunder

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

'part' is the definition.
(I've seen this in another clue)

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for sunder that I've seen before include "Nursed so as to tear apart" , "Cut" , "Tear apart, sever" , "Split apart" , "Separate the odd red sun" .)

Want a hint initially instead of a full solution? Install my app