Last of notable resistance overcome by Scots Guards (7)
I believe the answer is:
escorts
'guards' is the definition.
(I have seen 'Armed guards ' mean 'escorts' so perhaps 'guards' could also mean 'escorts')
'last of notable resistance overcome by scots' is the wordplay.
'last of' says to take the final letters.
'resistance' becomes 'r' (electronics abbreviation).
'overcome by' means one lot of letters goes inside another.
The final letter of 'notable' is 'e'.
'r' put inside 'scots' is 'scorts'.
'e'+'scorts'='ESCORTS'
(Other definitions for escorts that I've seen before include "Attendants" , "Accompanies, perhaps socially" , "They accompany others" , "Accompanies to protect" , "Armed guards" .)