Standard carrying feeble column (6)
I believe the answer is:
pillar
'column' is the definition.
(both can mean an upright structure)
'standard carrying feeble' is the wordplay.
'standard' becomes 'par' (standard of play in golf).
'carrying' is an insertion indicator.
'feeble' becomes 'ill' (both can mean unwell).
'par' placed around 'ill' is 'PILLAR'.
(Other definitions for pillar that I've seen before include "Architectural support" , "Tall vertical structure, of stone say" , "Column; admired member (of community)" , "Supporter" , "Supporting column" .)