Cliff's poker tactic (5)
I believe the answer is:
bluff
This clue could be a double definition.
'cliff's' is the first definition.
(thesaurus)
'poker tactic' is the second definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
Can you help me to learn more?
(Other definitions for bluff that I've seen before include "What a poker player does - or tries to" , "Attempt to deceive" , "Act deceptively; steep cliff" , "Hoodwink" , "Deceive by concealing weakness" .)