Hoping to get fastener (3)
I believe the answer is:
pin
'fastener' is the definition.
(I know that pin is a type of fastener)
'hoping to get' is the wordplay.
'to get' indicates a hidden word (I've seen 'gets' mean this).
'PIN' can be found hidden inside 'hoping'.
(Other definitions for pin that I've seen before include "Peg or nail" , "Hold (down)" , "Initially, confidential number for use of bank card" , "Fixing device" , "Stick with flag placed in golf hole" .)