Gather pear was cooked (4)
I believe the answer is:
reap
'gather' is the definition.
(I know that reap is a more specific form of gather)
'pear was cooked' is the wordplay.
'was cooked' is an anagram indicator.
'pear' with letters rearranged gives 'REAP'.
(Other definitions for reap that I've seen before include "Use a scythe" , "Save harvest, glean" , "''As you sow, so you . . . .'' (4)" , "Get -- derive" , "Cut the corn" .)