A piece from Pinero - 'A Merry Wanderer (6)

I believe the answer is:

roamer

'wanderer' is the definition.
(someone roaming around)

'a piece from pinero 'a merry' is the wordplay.
'a piece from' says the answer is hidden in the clue.
'ROAMER' is hidden in the letters of 'pinero a merry'.

(Other definitions for roamer that I've seen before include "Wanderer" , "Aimless traveller" , "One who travels aimlessly over a wide area" , "Unsettled person" .)

I've seen this clue in The Irish Independent.

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