Removal of stability of model of underwater craft? (10)
I believe the answer is:
subversion
'underwater craft?' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'removal of stability of model' is the wordplay.
'removal of stability of' becomes 'sub' (I can't justify this - if you can you should believe this answer much more).
'model' becomes 'version' (I've seen this before).
'sub'+'version'='SUBVERSION'
'of' acts as a link.
Can you help me to learn more?
(Another definition for subversion that I've seen is " ruin".)