Nominally, one has to turn right (4)
I believe the answer is:
igor
'nominally one has to turn right' is the definition.
I can't judge whether this definition defines the answer.
'one has to turn right' is the wordplay.
'one has to' becomes 'i' (I've seen this in other clues).
'turn' becomes 'go' (a person's move in a board game).
'right' becomes 'R' (common abbreviation).
'i'+'go'+'r'='IGOR'
Can you help me to learn more?
(Other definitions for igor that I've seen before include "Card game" , "Hero of Borodin" , "Russian man" , "Stravinsky's first name" , "Prince --, opera by Borodin" .)