Devil similar to horned creature (6)
I believe the answer is:
impala
'horned creature' is the definition.
'impala' can be an answer for 'creature' (I've seen this before). I'm unsure of the 'horned' bit.
'devil similar to' is the wordplay.
'devil' becomes 'imp' (devilish creature).
'similar to' becomes 'a la' (I've seen this in another clue).
'imp'+'ala'='IMPALA'
Can you help me to learn more?
(Other definitions for impala that I've seen before include "runner and long jumper from Africa" , "Spectacular jumper" , "horned beast" , "Leaping antelope" , "one advances by leaps and bounds" .)