Look at what goose-thief would do! (4,1,6)

'would do' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'look at what goose-thief' is the wordplay.
I cannot quite see how this works, but
'look' could be 'takea' (taking a look is a kind of looking) and 'takea' is found in the answer.
'goose' could be 'gander' (male goose) and 'gander' is located in the answer.
This accounts for all the letters.
This explanation may well be incorrect...

Can you help me to learn more?