Wordplay (3)
I believe the answer is:
pun
'wordplay' is the definition.
(synonyms)
This is all the clue.
(Other definitions for pun that I've seen before include "A play on words, perhaps the lowest form of wit" , "A play on words, may be funny" , "Bit of paronomasia; witticism" , "joke" , "A play on words, not really wit" .)