Laurel’s speaking a verse (6)
I believe the answer is:
stanza
'verse' is the definition.
(a stanza is a verse of a poem)
'laurel's speaking a' is the wordplay.
'laurel' becomes 'stan' (comedian Stan Laurel is an example).
'speaking' becomes 'z' (I can't justify this - if you can you should give a lot more credence to this answer).
'stan'+'z'+'a'='STANZA'
Can you help me to learn more?
(Other definitions for stanza that I've seen before include "Poetic unit" , "Lines often repeated" , "Group of poetic lines" , "Unit of a poem" , "Lines of poetry forming a pattern" .)