Quick way to get fit by exercise (5)
I believe the answer is:
swift
'quick' is the definition.
(I've seen this before)
'way to get fit by exercise' is the wordplay.
I cannot quite understand how this works, but
'way' could be 'w' (Compass direction - West) and 'w' is found within the answer.
an anagram of 'fit' is 'ift' which is located in the answer.
A single letter 's' remains which might be clued in a way I don't understand.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for swift that I've seen before include "Rapid - writer - bird" , "Swallow-like bird" , "Large property" , "like a peregrine falcon?" , "Fast moving; bird" .)