Crossword Genius

Withheld payment in harbour (6)

Ross

I believe the answer is:

docked

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

'withheld' is the definition.
(docking is a kind of withholding)

'payment in harbour' is the wordplay.
I cannot quite see how this works, but
'harbour' could be 'dock' (I've seen this before) and 'dock' is located in the answer.
The remaining letters 'ed' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for docked that I've seen before include "Cut short" , "Berthed" .)

I've seen this clue in The Globe and Mail.
Want a hint initially instead of a full solution? Install my app