Activity that could result in bears showing aggression? (5-8)
I believe the answer is:
sabre rattling
'activity' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'that could result in bears showing aggression?' is the wordplay.
'that could result in' is an anagram indicator.
'showing aggression?' becomes 'rattling' (I am not sure about this - if you are sure you should believe this answer much more).
'bears' with letters rearranged gives 'sabre'.
'sabre'+'rattling'='SABRE-RATTLING'
Can you help me to learn more?
(Other definitions for sabre rattling that I've seen before include "aggressive behaviour?" , "by jingo!" , "Aggressive display of military force" , "Threatening force" , "display of aggression" .)