Well, it's how a man should be prepared for his wedding! (7)
I believe the answer is:
groomed
'well' is the definition.
The answer and definition are different parts of speech. However, adjectives and past participle verbs can occasionally define each other.
'how a man should be prepared for his wedding' is the wordplay.
I cannot quite see how this works, but
'man' could be 'ed' (short for Edward) and 'ed' is found in the answer.
The remaining letters 'groom' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'it's' is the link.
Can you help me to learn more?
(Other definitions for groomed that I've seen before include "Neat and smart in appearance" , "Brushed and cleaned" , "Smartened" , "prepared for particular office" .)