Designed enclosure with light emitting diode (6)
I believe the answer is:
styled
'designed' is the definition.
(styling is a kind of designing)
'enclosure with light emitting diode' is the wordplay.
'enclosure' becomes 'sty' (sty is a kind of enclosure).
'with' is a charade indicator (letters next to each other).
'light emitting diode' becomes 'led' (this might be a standard abbreviation I've not previously seen).
'sty'+'led'='STYLED'
Can you help me to learn more?
(Other definitions for styled that I've seen before include "Fashioned" , "Called; (hair) shaped" , "Designed, arranged" , "Designed; designated" .)