Attain as bio aids: that’s quite a good thing to do (2,2,3,1,3,4)

'attain as bio aids that's quite' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'a good thing to do' is the wordplay.
I cannot quite see how this works, but
'a' is present in the answer.
'good' could be 'notbad' (similar in meaning) and 'notbad' is found in the remaining letters.
'thing' could be 'it' and 'it' is located in the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?