Interval in which Jew possibly receives cricket side (8)
I believe the answer is:
semitone
'interval' is the definition.
(I know that semitone is a type of interval)
'jew possibly receives cricket side' is the wordplay.
'jew possibly' becomes 'Semite' (Semitic people).
'receives' is an insertion indicator (inserted letters are received).
'cricket side' becomes 'on' (cricket term, on or leg side).
'semite' placed around 'on' is 'SEMITONE'.
'in which' acts as a link.
(Other definitions for semitone that I've seen before include "One twelfth of an octave" , "100 cents" , "Small musical interval" , "Short musical interval" , "Small interval between notes" .)