She shows a bit of heaven to American tennis fans (5)
I believe the answer is:
venus
'she' is the definition.
'a bit of heaven to american tennis fans' is the wordplay.
I cannot really see how this works, but
'american' could be 'us' (United States) and 'us' is found within the answer.
The remaining letters 'ven' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'shows' is the link.
Can you help me to learn more?
(Other definitions for venus that I've seen before include "Aggrieved, peeved" , "Solar system planet" , "our Neighbour" , "not really a star" , "Planet; goddess" .)