Transcribe from expert put in dock (9)
I believe the answer is:
reproduce
'transcribe' is the definition.
(thesaurus)
'expert put in dock' is the wordplay.
'expert' becomes 'pro' (short for professional).
'put in' indicates putting letters inside.
'dock' becomes 'reduce' (I can't explain this - if you can you should give a lot more credence to this answer).
'pro' inserted within 'reduce' is 'REPRODUCE'.
'from' is the link.
Can you help me to learn more?
(Other definitions for reproduce that I've seen before include "Ape" , "To propagate" , "Make a child" , "Procedure (anag.)" , "Create offspring" .)