Awkward suitor bearing ring is causing trouble (7)
I believe the answer is:
riotous
'causing trouble' is the definition.
(causing a riot or disturbance)
'awkward suitor bearing ring' is the wordplay.
'awkward' indicates anagramming the letters.
'bearing' is an insertion indicator.
'ring' becomes 'o' (letter resembling a ring).
'suitor' with letters rearranged gives 'riotus'.
'riotus' going around 'o' is 'RIOTOUS'.
'is' is the link.
(Other definitions for riotous that I've seen before include "Anarchic" , "Unrestrained, wild living perhaps" , "unmanageable" , "Unruly U rebellious" , "Wild, disorderly" .)