Notice project worker and military aide (8)
I believe the answer is:
adjutant
'military aide' is the definition.
(I've seen this before)
'notice project worker' is the wordplay.
'notice' becomes 'ad'.
'project' becomes 'jut' (I've seen this before).
'worker' becomes 'ant' (worker is a type of ant).
'ad'+'jut'+'ant'='ADJUTANT'
'and' is the link.
(Other definitions for adjutant that I've seen before include "Military admin officer" , "Admin. assistant officer" , "Army staff officer" , "Officer's assistant" , "Aide-de-camp" .)