Writer crossing street leading to restaurant (6)
I believe the answer is:
bistro
'restaurant' is the definition.
(bistro is a kind of restaurant)
'writer crossing street' is the wordplay.
'writer' becomes 'biro' (I've seen this before**).
'crossing' is an insertion indicator.
'street' becomes 'st'.
'biro' going around 'st' is 'BISTRO'.
'leading to' acts as a link.
(Other definitions for bistro that I've seen before include "Cafe bar" , "Modest restaurant" , "Intimate eatery" , "Eating place" , "Small restaurant - robs it (anag)" .)