Iambic verse of song that's short and clear (6)
I believe the answer is:
sonnet
'iambic verse' is the definition.
'sonnet' can be an answer for 'verse' (thesaurus). I am unsure of the 'iambic' bit.
'song that's short and clear' is the wordplay.
'that's short' means to remove the last letter.
'and' means one lot of letters go next to another.
'clear' becomes 'net' (as in net profit).
'song' with its final letter removed is 'son'.
'son'+'net'='SONNET'
'of' is the link.
Can you help me to learn more?
(Other definitions for sonnet that I've seen before include "Fourteen-line poem" , "Poem of fourteen lines" , "14-line poem" , "Fourteen-line 11" , "Shakespearean poem" .)