Minute parts (7)
I believe the answer is:
seconds
'minute parts' is the definition.
The answer and definition can be both acts as well as being plural nouns.
Maybe there's an association between them I don't understand?
'minute parts' is the wordplay.
'minute' becomes 'second' (synonyms).
'parts' becomes 's' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'second'+'s'='SECONDS'
Can you help me to learn more?
(Other definitions for seconds that I've seen before include "in a little while" , "Supports motion" , "in a minute!" , "Gives support to" , "More food!" .)