Crossword Genius

I try to describe a villainous Shakespearean character (4)

Ross

I believe the answer is:

'villainous shakespearean character' is the definition.
(villain in Shakespeare's Othello)

'i try to describe a' is the wordplay.
'try' becomes 'go' (both can mean an attempt).
'to describe' indicates putting letters inside.
'i'+'go'='igo'
'igo' placed around 'a' is 'IAGO'.

(Other definitions for iago that I've seen before include "Othello's evil counsellor", "stage villain", "Organ stop", "Othello's ensign", "Othello's nemesis".)

I've seen this clue in The Telegraph.