Topless intimacy with buxom model (7)
I believe the answer is:
example
'model' is the definition.
(I know that model can be written as example)
'topless intimacy with buxom' is the wordplay.
'topless intimacy' becomes 'ex' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'with' means one lot of letters go next to another.
'buxom' becomes 'ample' (I've seen this in another clue).
'ex'+'ample'='EXAMPLE'
Can you help me to learn more?
(Other definitions for example that I've seen before include "Prototype" , "Case in point" , "Someone to emulate" , "Paradigm or model" , "Specimen, sample" .)