Honest deal? (8)
I believe the answer is:
straight
I believe this clue is a double definition.
'honest' is the first definition.
(similar in meaning)
'deal?' is the second definition.
(I know that straight is a type of poker hand)
(Other definitions for straight that I've seen before include "Poker hand of five consecutive cards" , "Instantly - honest" , "(Of drink) undiluted" , "Unswerving" , "Frank" .)