Supports outside temples (4)
I believe the answer is:
tees
'supports' is the definition.
(tee is a kind of support)
'outside temples' is the wordplay.
'outside' means to remove the middle letters (I've seen 'outside of' mean this).
'temples' with its centre taken out is 'TEES'.
(Other definitions for tees that I've seen before include "Sport items" , "Golf pegs" , "Northern river" , "Golfer's supports; river" , "Sides of Trent" .)