Singular example of game (4)

I believe the answer is:
stag
'game' is the definition.
(stags are game in the hunting sense)
'singular example' is the wordplay.
'singular' becomes 's' (abbreviation sometimes used in dictionaries).
'example' becomes 'tag' (I can't justify this - if you can you should give a lot more credence to this answer).
's'+'tag'='STAG'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for stag that I've seen before include "Adult male red deer" , "Without women" , "in a rut, perhaps?" , "One who speculates" , "Sort of party" .)
