Number one priority is always track events for starters (6)
I believe the answer is:
opiate
'number' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe there's an association between them I don't understand?
'one priority is always track events for starters' is the wordplay.
'for starters' indicates taking the first letters.
The first letters of 'one priority is always track events' is 'OPIATE'.
Can you help me to learn more?
(Other definitions for opiate that I've seen before include "It induces sleep" , "A sedative drug" , "A poet I become on this drug" , "one soporific" , "Type of drug" .)