NL10 Nutflush overshover river on paired board

PokerStars Zoom, Hold'em No Limit - $0.05/$0.10 - 6 players

UTG: $11.35 (114 bb)
MP: $17.88 (179 bb)
CO (Hero): $10.48 (105 bb)
BU: $10.87 (109 bb)
SB: $3.66 (37 bb)
BB: $21.80 (218 bb)

Pre-Flop: ($0.15) Hero is CO with A♦ 7♦
2 players fold, Hero raises to $0.25, 2 players fold, BB calls $0.15

Flop: ($0.55) T♦ 9♥ K♦ (2 players)
BB checks, Hero bets $0.41, BB calls $0.41

Turn: ($1.37) 9♦ (2 players)
BB checks, Hero checks

River: ($1.37) 2♠ (2 players)
BB bets $1.70, Hero raises to $9.82 (all-in), BB calls $8.12

Total pot: $21.01 (Rake: $0.95)

Showdown:
CO (Hero) shows A♦ 7♦ (a flush, Ace high)
(Equity - Pre-Flop: 32%, Flop: 27%, Turn: 0%, River: 0%)

BB shows T♥ T♣ (a full house, Tens full of Nines)
(Equity - Pre-Flop: 68%, Flop: 73%, Turn: 100%, River: 100%)

BB wins $20.06

Ye, not only river, also turn I wasn't sure at all. I thought I should slowplay this, but not sure. Thanks

Villain is 16/14/9 4 AF, so very tight and very aggressive. He is decent, but probably too tight overall. Anyway, what I didn't expect is TT in his SB cc range, but I guess it is. I wouldn't have been surprised to see T9s or 22. k9s probably not pure. Overall just not too many nut combos for him here. I thought he can hero call some random 9 maybe, but ofc not many there, only 89s really and A9s, but then ofc all the flushes. I guess his flushes he would have played like that a lot.