One moving fast in spring term, always last to leave (8)
I believe the answer is:
sprinter
'one moving' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'in spring term always last to leave' is the wordplay.
I cannot quite see how this works, but
'in' is present in the answer.
This explanation may well be incorrect...
'fast' is the link.
Can you help me to learn more?
(Other definitions for sprinter that I've seen before include "He runs as fast as he can over short distance" , "one running" , "Person in short race" , "speedy runner" , "Usain Bolt, for instance" .)