A five letter word with the fourth letter A are:
aura, bola, coda, Dora, Ezra, flea, gala, Hera, iota, Jana, Kara, Lara, Mona, Okra, pita, plea, rhea, soda, stoa, skua, tuna, Ulla, Vera, wa-wa, ya-ya, Zaza
faster
bakerybikingbakinghikingjokinglikingmakingpokingrakingtakingwaking
Tactic.
physic
billet billet
Cougar
Skiing
A 6-letter word with the letter "w" as the third letter is "answer." The word "answer" has six letters and the letter "w" appears in the third position, making it a suitable answer to your question.
Upkeep
caused, eluded, prudes
raCisM racism
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