Being malicious, put files in a heap (8)
I believe the answer is:
spiteful
'in a heap' is the definition.
I can't judge whether this defines the answer.
'being malicious put files' is the wordplay.
'being malicious' indicates anagramming the letters.
'put'+'files'='putfiles'
'putfiles' is an anagram of 'SPITEFUL'.
Can you help me to learn more?
(Other definitions for spiteful that I've seen before include "Vengeful, malicious" , "Malevolent, wanting to hurt" , "Showing malice" , "Vindictive - malicious" , "nasty!" .)