results in organization of cellular component organization actin cytoskeleton organization postsynaptic actin cytoskeleton postsynaptic actin cytoskeleton organization biological_process A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising actin filaments and their associated proteins in the postsynaptic actin cytoskeleton. GO:0098974 postsynaptic cytoskeleton organization