Taunt English after understandable Irish Rising (8)
I believe the answer is:
ridicule
'taunt' is the definition.
(thesaurus)
'english after understandable irish rising' is the wordplay.
'english' becomes 'e' (abbreviation).
'after' means one lot of letters go next to another.
'understandable' becomes 'lucid' ('lucid' can be a synonym of 'understandable').
'irish' becomes 'ir' (abbreviation).
'rising' is a reversal indicator (going up in a down clue).
'lucid'+'ir'='lucidir'
'lucidir' in reverse letter order is 'ridicul'.
'e' put after 'ridicul' is 'RIDICULE'.
(Other definitions for ridicule that I've seen before include "Meek" , "I rid clue of derision" , "Lampoon" , "Pour scorn on" , "Laugh at or deride" .)