Look at first of bodies — and throw up! (3)
I believe the answer is:
lob
'throw up' is the definition.
(I've seen this before)
'look at first of bodies' is the wordplay.
'look' becomes 'lo' (archaic term meaning 'look!').
'at' is a charade indicator (letters next to each other).
'first of bodies' becomes 'b' (lst letter of 'bodies').
'lo'+'b'='LOB'
'and' is the link.
(Other definitions for lob that I've seen before include "Throw a slow, high ball" , "Loft" , "Shot of Murray" , "Elevated shot" , "Tennis shot" .)