Skill of British fliers appearing in court (5)
I believe the answer is:
craft
'skill' is the definition.
(I know that craft is a type of skill)
'british fliers appearing in court' is the wordplay.
'british fliers' becomes 'RAF' (Royal Air Force).
'appearing in' means one lot of letters goes inside another.
'court' becomes 'ct' (abbreviation used in road names).
'raf' inserted within 'ct' is 'CRAFT'.
'of' is the link.
(Other definitions for craft that I've seen before include "boats" , "Creative activity" , "Trickery" , "Skill in doing something" , "Skill, cunning" .)