Buglers struggling to grasp a singular style of country music (9)
I believe the answer is:
bluegrass
'country music' is the definition.
(bluegrass is a type of country music)
'buglers struggling to grasp a singular' is the wordplay.
'struggling' indicates an anagram (the letters struggle or wriggle into a new form).
'to grasp' means one lot of letters goes inside another.
'singular' becomes 's' (abbreviation sometimes used in dictionaries).
'buglers' anagrammed gives 'bluegrs'.
'a'+'s'='as'
'bluegrs' going around 'as' is 'BLUEGRASS'.
'style of' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for bluegrass that I've seen before include "Kind of country music" , "A type of country music" , "Style of country music from Kentucky" , "nickname of US State" , "American hillbilly music" .)