After cycling, Ravi necks a good stiffener (6)
I believe the answer is:
viagra
'after cycling' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'ravi necks a good stiffener' is the wordplay.
I cannot really see how this works, but
'a' is within the answer.
'good' could be 'g' (abbreviation) and 'g' is found in the answer.
an anagram of 'ravi' is 'vira' which is located in the remaining letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for viagra that I've seen before include "Performance-enhancing drug?" , "Drug to improve potency" , "Controversial pills" , "Treatment" , "Drug treating impotence" .)