Bottle full of soup oddly in sight (6)
I believe the answer is:
visual
'in sight' is the definition.
(thesaurus)
'bottle full of soup oddly' is the wordplay.
'bottle' becomes 'vial' (vial is a kind of bottle**).
'full of' indicates putting letters inside.
'oddly' indicates alternate letters.
The alternate letters of 'soup' are 'su'.
'vial' going around 'su' is 'VISUAL'.
(Other definitions for visual that I've seen before include "Pertaining to sight" , "Of the eyes or sight" , "Of sight and seeing" , "Relating to seeing" , "Relating to, or using, sight" .)