Shy away from greasy stuff found under playground (6)
I believe the answer is:
recoil
'shy away' is the definition.
(thesaurus)
'greasy stuff found under playground' is the wordplay.
'greasy stuff' becomes 'oil' (I can't justify this - if you can you should believe this answer much more).
'found under' means one lot of letters go next to another.
'playground' becomes 'rec' (I've seen this in other clues).
'oil' after 'rec' is 'RECOIL'.
'from' acts as a link.
Can you help me to learn more?
(Other definitions for recoil that I've seen before include "Flinch, shrink back in fear" , "Kick of gun" , "Spring back suddenly as gun may when fired" , "Backward jerk of a gun when it's fired" , "Start back like a gun on firing" .)