Tactics in games start going wrong (10)
I believe the answer is:
stratagems
'tactics' is the definition.
The definition and answer can be both related to thinking as well as being plural nouns.
Perhaps they are linked in a way I don't understand?
'games start going wrong' is the wordplay.
'going wrong' indicates an anagram.
'games'+'start'='gamesstart'
'gamesstart' anagrammed gives 'STRATAGEMS'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for stratagems that I've seen before include "Manoeuvres" , "Plans" .)