Footwear for athletic coaches (8)
I believe the answer is:
trainers
'coaches' is the definition.
(I've seen this in another clue)
'footwear for athletic' is the wordplay.
'footwear' becomes 'trainer'.
'for' is a charade indicator (letters next to each other).
'athletic' becomes 's' (I can't justify this - if you can you should give a lot more credence to this answer).
'trainer'+'s'='TRAINERS'
Can you help me to learn more?
(Other definitions for trainers that I've seen before include "needed to get the most out of racehorses?" , "Special shoes" , "People who coach athletes, or running shoes" , "Casual footwear" , "Footwear for athletes" .)