Currently in south, one may call for a ride in winter (10)
I believe the answer is:
snowmobile
'call for a ride in winter' is the definition.
I can't judge whether this definition defines the answer.
'currently in south one' is the wordplay.
'currently' becomes 'now' (I've seen this in another clue).
'in' indicates putting letters inside.
'south' becomes 'S' (abbreviation).
'one' becomes 'mobile' (I can't justify this - if you can you should give a lot more credence to this answer).
's'+'mobile'='smobile'
'now' inserted inside 'smobile' is 'SNOWMOBILE'.
'may' acts as a link.
Can you help me to learn more?
(Other definitions for snowmobile that I've seen before include "Winter vehicle with caterpillar tracks" , "Winter transport" , "modern way to sledge" , "Arctic transport" , "Tracked vehicle for winter travel?" .)