Made move that's bad and frets about blunder (11)
I believe the answer is:
transferred
'made move' is the definition.
(transferring is a kind of making move)
'bad and frets about blunder' is the wordplay.
I cannot quite see how this works, but
'and' could be 'n' (common abbreviation for 'and') and 'n' is present in the answer.
'about' could be 're' (regarding) and 're' is present in the answer.
This explanation may well be incorrect...
'that's' is the link.
Can you help me to learn more?
(Other definitions for transferred that I've seen before include "Moved across" , "Moved (to another team)" , "Moved (from one place to another)" .)