Soldier to talk, yet shaking to bits (8)
I believe the answer is:
gigabyte
'to bits' is the definition.
(gigabytes are made up of bits)
'soldier to talk yet shaking' is the wordplay.
'soldier' becomes 'GI' (GI can mean a US soldier).
'to talk' becomes 'gab' (I've seen this in another clue).
'shaking' indicates an anagram.
'yet' is an anagram of 'yte'.
'gi'+'gab'+'yte'='GIGABYTE'
(Other definitions for gigabyte that I've seen before include "Unit of information" , "Unit of computer memory" .)