Received with thanks, you know (5)
I believe the answer is:
taken
'received' is the definition.
(taking is a kind of receiving)
'thanks you know' is the wordplay.
I cannot quite understand how this works, but
'thanks' could be 'ta' (UK informal version of 'thank you') and 'ta' is located in the answer.
'know' could be 'ken' (Scottish term meaning to know) and 'ken' is found within the answer.
No letters remain.
This explanation may well be incorrect...
'with' is the link.
Can you help me to learn more?
(Other definitions for taken that I've seen before include "Removed; occupied" , "Appropriated" , "This is spoken for" , "Transported" , "Removed (from a place)" .)