Doyle disposed to sing high (5)
I believe the answer is:
yodel
'sing high' is the definition.
(yodelling is a type of high-pitched singing)
'doyle disposed' is the wordplay.
'disposed' indicates an anagram.
'doyle' is an anagram of 'YODEL'.
'to' acts as a link.
(Other definitions for yodel that I've seen before include "Sing (in the Alps)" , "Sing like the Lonely Goatherd?" , "Sing like some Alpine dwellers" , "Sing (Alpine folk music)" , "Alpine warble" .)