Holds up with end of finger for shots in the arm (5)
I believe the answer is:
raids
'shots in the arm' is the definition.
The definition and answer can be both acts as well as being plural nouns.
Maybe you can see a link between them that I can't see?
'holds up with end of finger' is the wordplay.
'holds up' becomes 'aids' (I can't justify this - if you can you should believe this answer much more).
'with' is a charade indicator (letters next to each other).
'end of' says to take the final letters.
The last letter of 'finger' is 'r'.
'aids' after 'r' is 'RAIDS'.
'for' is the link.
Can you help me to learn more?
(Other definitions for raids that I've seen before include "Sudden attacks" , "Surprise attacks" , "Military attacks" , "Invasions" , "Searches by police without warning" .)