Refusal and agreement? Flipping curious! (5)
I believe the answer is:
nosey
'curious' is the definition.
(similar in meaning)
'refusal and agreement? flipping' is the wordplay.
'refusal' becomes 'no' (saying no to something).
'and' means one lot of letters go next to another.
'agreement?' becomes 'yes' (saying yes to something).
'flipping' shows that the letters should be reversed in order.
'yes' reversed gives 'sey'.
'no'+'sey'='NOSEY'
(Other definitions for nosey that I've seen before include "Prying" , "Offensively curious or inquisitive" , "Showing too much interest in other people's affairs" , "Curious in nasal way" , "Impertinent" .)