Swimming race interrupted by American with recording equipment (6)
I believe the answer is:
camera
'recording equipment' is the definition.
'camera' can be an answer for 'equipment' (camera is a kind of equipment). I'm not certain of the 'recording' bit.
'swimming race interrupted by american' is the wordplay.
'swimming' indicates an anagram.
'interrupted by' is an insertion indicator.
'american' becomes 'Am' (abbreviation in some contexts).
'race' is an anagram of 'cera'.
'cera' placed around 'am' is 'CAMERA'.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for camera that I've seen before include "TV/film equipment" , "Apparatus for taking pictures" , "Light-proof box with a lens and film" , "Nullify" , "Picture taker" .)