Member of cast in ferry production becomes unmanageable (10)
I believe the answer is:
refractory
'unmanageable' is the definition.
(thesaurus)
'member of cast in ferry production' is the wordplay.
'member of' becomes 'actor' (I can't justify this - if you can you should give a lot more credence to this answer).
'cast in' means one lot of letters goes inside another.
'production' indicates an anagram.
'ferry' is an anagram of 'refry'.
'actor' going within 'refry' is 'REFRACTORY'.
'becomes' acts as a link.
Can you help me to learn more?
(Other definitions for refractory that I've seen before include "Racer, forty (anag.)" , "Difficult to control" , "recalcitrant" , "Obstinate, wilful" , "Disobedient - uncontrollable" .)