A soldier and a pretty girl you see at the salad bar (6)
I believe the answer is:
'you see at the salad bar' is the definition.
I can't tell whether this definition defines the answer.
'a soldier and a pretty girl' is the wordplay.
'a soldier' becomes 'RA' (member of the Royal Artillery).
'and' is a charade indicator (letters next to each other).
'a pretty girl' becomes 'dish' (I've seen this in other clues).
Can you help me to learn more?
(Other definitions for radish that I've seen before include "Root vegetable used in salads", "Pungent fleshy edible root eaten in salads", "Edible small root", "Hard vegetable", "Hottish salad plant".)