Right about blocking call for a quicker approach (5,3)
I believe the answer is:
short cut
'quicker approach' is the definition.
The definition suggests a singular noun which matches the answer.
'right about blocking call for a' is the wordplay.
'right' becomes 'rt' (abbreviation as in Rt Hon- the Right Honourable).
'about' is an insertion indicator.
'blocking' is an insertion indicator (to block can mean to block in or contain).
'call' becomes 'ho' (historical exclamation used to attract attention).
'for a' becomes 'scut' (I can't justify this - if you can you should believe this answer much more).
'ho' placed within 'scut' is 'shocut'.
'rt' put into 'shocut' is 'SHORT-CUT'.
Can you help me to learn more?
(Other definitions for short cut that I've seen before include "Bob possibly" , "Removal of most locks" , "Fast route" , "Time-saving route" , "Alternative route to save distance" .)