Origin of old drawing (10)
I believe the answer is:
extraction
'origin' is the definition.
('extraction' can be a synonym of 'origin')
'old drawing' is the wordplay.
'old' becomes 'ex'.
'drawing' becomes 'traction' (I've seen this before**).
'ex'+'traction'='EXTRACTION'
'of' is the link.
(Other definitions for extraction that I've seen before include "Dental operation" , "drawing" , "one suffers with mouth open?" , "Descent" , "breeding" .)