Relative caught dipping into articles in French (5)
I believe the answer is:
uncle
'relative' is the definition.
(I know that uncle is a type of kinsman)
'caught dipping into articles in french' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'dipping into' indicates putting letters inside.
'articles in french' becomes 'un le' ('un' and 'le' are articles in French).
'c' inserted inside 'unle' is 'UNCLE'.
(Other definitions for uncle that I've seen before include "Family relation" , "Sam, perhaps" , "Male relative - pawnbroker" , "Brother of one's parent" , "A parent's brother" .)