Sprayed with liquid in second: dashed about? (10)
'sprayed with liquid' is the definition.
(to splatter is to splash with liquid)
'second dashed about?' is the wordplay.
'second' becomes 'latter'.
'dashed' becomes 'sped' (I've seen this before).
'about?' is an insertion indicator.
'latter' going into 'sped' is 'SPLATTERED'.
'in' acts as a link.