English still displaying a stiff upper lip (11)
I believe the answer is:
emotionless
'displaying a stiff upper lip' is the definition.
I can't judge whether this definition defines the answer.
'english still' is the wordplay.
'english' becomes 'E' (abbreviation).
'still' becomes 'motionless' (synonyms).
'e'+'motionless'='EMOTIONLESS'
Can you help me to learn more?
(Other definitions for emotionless that I've seen before include "lacking passion" , "devoid of passion" , "cold and hard?" , "Unmoved by feelings" , "Without feelings" .)