Raise trivial objections and leave musical opening in Stratford (5,5)
I believe the answer is:
split hairs
'raise trivial objections' is the definition.
I know nothing about this answer so I cannot tell whether this works.
'leave musical opening in stratford' is the wordplay.
'leave' becomes 'split' (I've seen this before).
'musical' becomes 'hair' (1960s musical).
'opening in' says to take the initial letters.
The initial letter of 'stratford' is 's'.
'split'+'hair'+'s'='SPLIT HAIRS'
'and' acts as a link.
Can you help me to learn more?
(Other definitions for split hairs that I've seen before include "Worry about minutiae" , "Make unnecessary points" , "a trichologist may deal with" , "cavil exceedingly" , "salon complaint?" .)