Metal bracket in corner next to golf club (5,4)
I believe the answer is:
angle iron
'metal bracket' is the definition.
(I've seen this before)
'corner next to golf club' is the wordplay.
'corner' becomes 'angle' (eg a corner of a shape).
'next to' is a charade indicator (letters next to each other).
'golf club' becomes 'iron' (type of golf club).
'angle'+'iron'='ANGLE IRON'
'in' is the link.
(Other definitions for angle iron that I've seen before include "Strong supporter" , "L-shaped structural component" , "structure might need this device" , "solid support" , "constructive support" .)