Sort of thong is visible (2,5)
I believe the answer is:
on sight
'visible' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'sort of thong is' is the wordplay.
'sort of' is an anagram indicator.
'thong'+'is'='thongis'
'thongis' anagrammed gives 'ON SIGHT'.
Can you help me to learn more?
(Other definitions for on sight that I've seen before include "How to shoot dangerous criminal" , "Without rehearsal performing" , "when observed" , "without a second glance?" , "As soon as presented" .)