Spy, old woman, showing nothing incriminating (7)
I believe the answer is:
maclean
'spy' is the definition.
(British spy Donald Maclean)
'old woman showing nothing incriminating' is the wordplay.
I cannot quite understand how this works, but
'woman' could be 'clea' and 'clea' is found within the answer.
The remaining letters 'man' 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).
Can you help me to learn more?
(Other definitions for maclean that I've seen before include "5 [HOMER]" , "novelist" .)