Curious golf supports in the past (4)
I believe the answer is:
agog
'curious' is the definition.
(thesaurus)
'golf supports in the past' is the wordplay.
'golf' becomes 'g' (phonetic alphabet: alpha, bravo, charlie etc.).
'supports' says to put letters next to each other (bottom letters provide a support for the top ones).
'in the past' becomes 'ago' ('ago' can be a synonym of 'in the past').
'g' put after 'ago' is 'AGOG'.
(Other definitions for agog that I've seen before include "In state of wide-eyed expectancy" , "Very eager (to see/hear)" , "In excited eagerness" , "Full of excitement" , "Very far from indifferent" .)