Ill at ease in equipage; French primarily, not British (8)
I believe the answer is:
farouche
'ill' is the definition.
Both the definition and answer are adjectives.
Maybe you can see an association between them that I don't see?
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for farouche that I've seen before include "ill at ease in society" , "Sullen, socially immature" , "Shy, sullen, lacking polish" .)