Golf club element? (4)
I believe the answer is:
iron
This clue is a double definition.
'golf club' is the first definition.
(I've seen this before)
'element?' is the second definition.
(iron is a kind of element)
(Other definitions for iron that I've seen before include "sports club" , "rations in emergency?" , "A magnet attracts it" , "Implacable - golf club" , "Smooth; element" .)