Do some coaching - a track is needed for it (5)
I believe the answer is:
train
'do some coaching a track' is the definition.
I can't judge whether this definition defines the answer.
'needed for it' is the wordplay.
'needed' becomes 'rain' (I can't explain this - if you can you should believe this answer much more).
'for' says to put letters next to each other (I've seen this in other clues).
'it' becomes ''t' (abbreviation. e.g. in 'tis).
'rain' after 't' is 'TRAIN'.
'is' is the link.
Can you help me to learn more?
(Other definitions for train that I've seen before include "Line of railway cars with locomotive" , "Coach - string of coaches" , "Series (of gears); coach" , "Flying Scotsman, e.g." , "Try to get fit" .)