Do I take drug, on turning up to get some protein? (5,4)
I believe the answer is:
amino acid
'some protein?' is the definition.
(I've seen this before)
'do i take drug on turning up' is the wordplay.
I cannot really understand how this works, but
'i' could be 'a' and 'a' is located in the answer.
'drug' could be 'acid' (acid is a kind of drug) and 'acid' is present in the answer.
The remaining letters 'mino' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'to get' acts as a link.
(Other definitions for amino acid that I've seen before include "source of protein required?" , "compound for life" , "Organic compound in proteins" , "Basic protein constituent" , "Chemical" .)