Worked on by a good cobbler? That’s rich! (4-6)
I believe the answer is:
well-heeled
'rich' is the definition.
(I know that rich can be written as well-heeled)
'worked on by a good cobbler?' is the wordplay.
I cannot really understand how this works, but
'good' could be 'well' (similar in meaning) and 'well' is found within the answer.
The remaining letters 'heeled' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'that's' acts as a link.
Can you help me to learn more?
(Other definitions for well-heeled that I've seen before include "Comfortably off" , "Prosperous, rich" , "Affluent" , "Wealthy" .)