Skill of British fliers appearing in court (5)
I believe the answer is:
craft
'skill' is the definition.
(craft is a kind of skill)
'british fliers appearing in court' is the wordplay.
'british fliers' becomes 'RAF' (Royal Air Force).
'appearing in' indicates putting letters inside.
'court' becomes 'ct' (abbreviation used in road names).
'raf' put inside 'ct' is 'CRAFT'.
'of' acts as a link.
(Other definitions for craft that I've seen before include "boats" , "Creative activity" , "Trickery" , "Skill in doing something" , "Skill, cunning" .)