Soldier receiving notice in a pickle (8)
I believe the answer is:
marinade
'a pickle' is the definition.
(I've seen this before)
'soldier receiving notice' is the wordplay.
'soldier' becomes 'marine' (I've seen this in other clues**).
'receiving' indicates putting letters inside.
'notice' becomes 'ad'.
'marine' placed around 'ad' is 'MARINADE'.
'in' is the link.
(Other definitions for marinade that I've seen before include "Food is steeped in this to improve flavour" , "Steep in seasoning" , "Spicy liquid for soaking meat or fish" , "Type of star system" , "Mixtures used for soaking foods before cooking" .)