Crossword Genius

Important, flat device with push-button controls (6)

Ross

I believe the answer is:

keypad

'device with push-button controls' is the definition.
(device with keys on it)

'important flat' is the wordplay.
'important' becomes 'key' (similar in meaning).
'flat' becomes 'pad' (a person's home).
'key'+'pad'='KEYPAD'

(Other definitions for keypad that I've seen before include "Small unit with push buttons" , "Phone's button array" , "What might help you calculate" , "Perhaps remote" , "Typing area on an electronic device" .)

I've seen this clue in The Times.
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