Important management group creates standard computer interface (8)
I believe the answer is:
keyboard
'computer interface' is the definition.
(I know that keyboard is a type of human interface device)
'important management' is the wordplay.
'important' becomes 'key' (similar in meaning).
'management' becomes 'board' (eg the board managing a business).
'key'+'board'='KEYBOARD'
'group creates standard' acts as a link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for keyboard that I've seen before include "Type" , "(Part of) musical instrument" , "facility for writing" , "One produces notes" , "Part of organ" .)