Carry advanced weapon: acknowledge those giving it up for you? (4,1,3)
I believe the answer is:
take a bow
'acknowledge those giving it up for you?' is the definition.
(a bow is taken as an audience is 'giving it up')
'carry advanced weapon' is the wordplay.
I cannot really understand how this works, but
'carry' could be 'take' (synonyms) and 'take' is found within the answer.
'advanced' could be 'a' and 'a' is found within the answer.
'weapon' could be 'bow' (bow is a kind of weapon) and 'bow' is found in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
(Other definitions for take a bow that I've seen before include "Acknowledge your audience" , "Acknowledge applause with bodily movement" , "Acknowledge applause as entertainer does" , "What Menuhin would initially do" , "Acknowledge praise or accept credit" .)