Left stylish English playwright holding right output device

I believe the answer is:

lineprinter

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'output device' is the definition.
'line printer' can be an answer for 'device' (line printer is a kind of device). I am not sure about the 'output' bit.

'left stylish english playwright holding right' is the wordplay.
'left stylish english' becomes 'line' (I can't explain this - if you can you should believe this answer much more).
'playwright' becomes 'pinter' (Harold Pinter).
'holding' means one lot of letters goes inside another.
'right' becomes 'r' (common abbreviation).
'pinter' placed around 'r' is 'printer'.
'line'+'printer'='LINE PRINTER'

Can you help me to learn more?

I've seen this clue in The Daily Mail.

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