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From letters G, L, A, S, S, W, O, R, K, E, R  I made following words

11 letter words

glassworker[19]

9 letter words

glasswork[17], arrowless[12]

8 letter words

legworks[16], gasworks[16], workless[15], growlers[12], warslers[11]

7 letter words

legwork[15], gawkers[15], walkers[14], reworks[14], workers[14], larkers[11], slakers[11], arkoses[11], resoaks[11], soakers[11], growler[11], glowers[11], reglows[11], growers[11], regrows[11], sawlogs[11], swagers[11], warsler[10], warless[10], warsles[10], wrassle[10], galores[8], gaolers[8], glossae[8], largess[8], glosser[8], regloss[8], grosser[8], lassoer[7], oarless[7], serosal[7], soarers[7], sorrels[7]

6 letter words

gawker[14], walker[13], rework[13], worker[13], wakers[13], wreaks[13], larker[10], lakers[10], slaker[10], arkose[10], resoak[10], soaker[10], rakers[10], slakes[10], skoals[10], askers[10], eskars[10], sakers[10], kaross[10], glower[10], reglow[10], grower[10], regrow[10], sawlog[10], swager[10], wagers[10], growls[10], swages[10], walers[9], warsle[9], lowers[9], rowels[9], slower[9], arrows[9], rowers[9], worser[9], awless[9], swales[9], resaws[9], sawers[9], sewars[9], swears[9], wrasse[9], sowars[9], resows[9], serows[9], sowers[9], worses[9], galore[7], gaoler[7], larger[7], argles[7], glares[7], lagers[7], larges[7], algors[7], argols[7], gorals[7], largos[7], oglers[7], rogers[7], glossa[7], gasser[7], sarges[7], sargos[7], gorses[7], ogress[7], soarer[6], sorrel[6], lasers[6], rassle[6], serosa[6], lessor[6], losers[6], sorels[6], rasers[6]

5 letter words

groks[10], skags[10], skegs[10], laker[9], raker[9], kales[9], lakes[9], leaks[9], slake[9], kolas[9], skoal[9], koels[9], asker[9], eskar[9], rakes[9], saker[9], larks[9], koras[9], okras[9], sakes[9], askos[9], soaks[9], sokes[9], argle[6], glare[6], lager[6], large[6], regal[6], algor[6], argol[6], goral[6], largo[6], ogler[6], roger[6], gales[6], gaols[6], goals[6], loges[6], ogles[6], agers[6], gears[6], rages[6], sager[6], sarge[6], sargo[6], goers[6], gores[6], gorse[6], ogres[6], gases[6], sages[6], glass[6], slags[6], sagos[6], gesso[6], segos[6], aloes[5], arles[5], earls[5], lares[5], laser[5], lears[5], rales[5], reals[5], seral[5], arose[5], orals[5], solar[5], lores[5], loser[5], orles[5], roles[5], sorel[5], rares[5], raser[5], rears[5], roars[5], sorer[5], lases[5], sales[5], seals[5], oases[5], lasso[5]