Sports equipment sent in to disrupt party (6,4)
I believe the answer is:
tennis ball
'sports equipment' is the definition.
'tennis ball' can be an answer for 'equipment' (tennis ball is a kind of equipment). I'm unsure of the 'sports' bit.
'sent in to disrupt party' is the wordplay.
'to disrupt' is an anagram indicator (I've seen 'disrupting' mean this).
'party' becomes 'ball' (ball is a kind of party).
'sent'+'in'='sentin'
'sentin' with letters rearranged gives 'tennis'.
'tennis'+'ball'='TENNIS-BALL'
Can you help me to learn more?
(Other definitions for tennis ball that I've seen before include "Something hit by racquets" , "Item used at Wimbledon" , "Wimbledon equipment" , "Bouncer" , "Item hit with rackets" .)