Condition not so much like a wild horse (9)
I believe the answer is:
riderless
'much like a wild horse' is the definition.
I can't judge whether this definition defines the answer.
'condition not' is the wordplay.
'condition' becomes 'rider' (condition or specification added to a contract).
'not' becomes 'less' (I've seen this in other clues).
'rider'+'less'='RIDERLESS'
'so' is the link.
Can you help me to learn more?
(Other definitions for riderless that I've seen before include "without one taking seat" , "Some horses are at end of race" , "out of condition?" , "like liberty horses" , "unqualified?" .)