Instinctive pressure on old tennis star (entertaining male one) to make comeback (8)
I believe the answer is:
primeval
'instinctive' is the definition.
(I've seen this before)
'pressure on old tennis star entertaining male one to make comeback' is the wordplay.
I cannot really understand how this works, but
'pressure' could be 'p' (abbreviation) and 'p' is found within the answer.
'male' could be 'al' (shortened version of Alex or Alistair) and 'al' is found within the answer.
'one' could be 'me' (a setter might use 'one' to humourously mean 'me') and 'me' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for primeval that I've seen before include "From the earliest times" , "Instinctive" , "Ancient" , "having come first in history" , "Prehistoric" .)