Fleeting time hastened international sports broadcast (9)
I believe the answer is:
transient
'fleeting time' is the definition.
'transient' can be an answer for 'fleeting' (I've seen this before). I am not certain of the 'time' bit.
'hastened international sports broadcast' is the wordplay.
'hastened' becomes 'tran' (I am not sure about this - if you are sure you should believe this answer much more).
'international' becomes 'i' (abbreviation eg in IMF).
'sports' means one lot of letters goes inside another (inserted letters wear or 'sport' others).
'broadcast' becomes 'sent' (sent or transmitted as a broadcast).
'i' placed within 'sent' is 'sient'.
'tran'+'sient'='TRANSIENT'
Can you help me to learn more?
(Other definitions for transient that I've seen before include "Fleeting" , "fugitive" , "Lasting little time" , "Lasting a short time" , "Temporary worker" .)