Timekeeper is nude perhaps in choice fruit (8)
I believe the answer is:
pendulum
'timekeeper' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'nude perhaps in choice fruit' is the wordplay.
'perhaps' indicates anagramming the letters.
'in' is an insertion indicator.
'choice fruit' becomes 'plum' (plum is a kind of fruit. I am not sure about the 'choice' bit.).
'nude' with letters rearranged gives 'endu'.
'endu' going into 'plum' is 'PENDULUM'.
'is' is the link.
Can you help me to learn more?
(Other definitions for pendulum that I've seen before include "Swinging weight that regulates clock" , "Clock regulator" , "Oscillating mechanism" , "Lead swinging" , "A swinging weight as in old clock" .)