Back in the saddle, doctor put in moulded denture (9)
I believe the answer is:
remounted
'back in the saddle' is the definition.
The answer and definition are different parts of speech. However, adjectives and past participle verbs occasionally mean the same thing.
'doctor put in moulded denture' is the wordplay.
I cannot really understand how this works, but
'doctor' could be 'mo' (medical officer) and 'mo' is found within the answer.
an anagram of 'denture' is 'reunted' which is within the remaining letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Another definition for remounted that I've seen is " Got on again".)