Lift up ball on green (4)
I believe the answer is:
jack
I believe this is a triple definition!
'lift up' is the first definition.
(jack can mean to raise or lift up)
'ball' is the second definition.
(type of ball in bowls)
'on' is a link.
'green' is the third definition.
(thesaurus)
(Other definitions for jack that I've seen before include "See 5 Down" , "Bowls target; small flag" , "-- Sprat; -- Horner" , "Car lifter" , "Car lift" .)