Such as Federer and Nadal serve well and intimidate (6)
I believe the answer is:
menace
'intimidate' is the definition.
(I've seen this before)
'such as federer and nadal serve well' is the wordplay.
I cannot quite understand how this works, but
'and' could be 'n' (common abbreviation for 'and') and 'n' is present in the answer.
'serve' could be 'ace' (type of tennis serve) and 'ace' is found in the answer.
The remaining letters 'me' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'and' acts as a link.
Can you help me to learn more?
(Other definitions for menace that I've seen before include "peril" , "A source of danger" , "Threat or severe nuisance" , "Serious threat" , "Intimidation" .)