Crossword Puzzle Substandard effort

Clue: Substandard effort

Requiring effort (LABORED with 7 letters)
Done with little effort or interest (PERFUNCTORY with 11 letters)
Effortless assimilation (OSMOSIS with 7 letters)
Effort's reward, in school (ANA with 3 letters)
Puts forth, as effort (EXERTS with 6 letters)
Achieved through great effort (HARDWRUNG with 9 letters)
Make the effort (TRY with 3 letters)
Global efforts to which this puzzle's theme is dedicated (UNINTERVENTIONS with 15 letters)
With genuine effort (ACTIVELY with 8 letters)
Extra effort, so to speak (ELBOWGREASE with 11 letters)