Gaelic speakers evidently content (4)
I believe the answer is:
erse
'gaelic' is the definition.
(I know that gaelic can be written as Erse)
'speakers evidently content' is the wordplay.
'content' says the answer is hidden in the clue (letters contained within the clue).
'ERSE' can be found hidden inside 'speakers evidently'.
(Other definitions for erse that I've seen before include "Kind of Gaelic for seer" , "Old Scots or Irish Gaelic" , "Irish Gaelic language" , "Old Gaelic for the seer" , "Old Celtic language" .)