Keen on Tyneside chant (6)
I believe the answer is:
intone
'chant' is the definition.
(I know that chant can be written as intone)
'keen on tyneside' is the wordplay.
'keen on' becomes 'into' (if you're 'into' something you're keen on it).
'tyneside' becomes 'NE' (region in North East of England).
'into'+'ne'='INTONE'
(Other definitions for intone that I've seen before include "Sing (prayer) on one note" , "Recite with little variation in pitch" , "Recite without inflection" , "Speak in chanting voice" , "Recite in a chanting voice" .)