Cryptic clue I see and explain (9)
I believe the answer is:
elucidate
'explain' is the definition.
(elucidating is a kind of explaining)
'cryptic clue i see' is the wordplay.
'cryptic' indicates anagramming the letters (I've seen this in other clues).
'see' becomes 'date' ('date' can be a synonym of 'see'**).
'clue' is an anagram of 'eluc'.
'eluc'+'i'+'date'='ELUCIDATE'
'and' acts as a link.
(Other definitions for elucidate that I've seen before include "Make clear, explain" , "Throw light on a problem, make clear (9)" , "Shed light upon" , "Shed light on, clarify" , "Make clear and more comprehensible" .)