Crossword clues for Adds. 9 letters:HOLDWATERAdd upMILDSALSANot-too-spicy taco add-onPLAYHORSETake part in an add-a-letter basketball game, as demonstrated by this puzzle's theme answersPAGINATESAdds numbers to, sayREINFORCEAdd extra support toELABORATEBetter able to speak, add details (9)EMBELLISHAdd frills toEVOLUTIONWord that becomes more dramatic when you add an "R" in frontINTRODUCEAdd inBEACHCOMBAdd to a shell collection, saySTOCKCARPAdd koi to a pet store's inventory?WINTERIZEAdd antifreeze, for exampleANNOTATESAdds explanatory notesCARPETTAXAdd-on decorating cost?FUZZYMATHIt doesn't add up ... except as a hint to 17-, 25-, 37- and 49-AcrossELABORATEAdd detailsEXCISETAXGas price add-onTECTONICSScience that adds art to utility.WINTERIZEAdd chains, snow tires, etc.CHIMEINONAdd one's two cents aboutHAPPYMEALCertain fast-food offering ... or what 17-, 27- and 48-Across certainly don't add up to?REDEPOSITAdd more silt to banksADOPTAPETAdd Fido to the family, perhapsCARBONATEAdd fizz toEXTRAMILEAbove-and-beyond add-onPENCILSINTentatively adds to the scheduleLEAVEATIPAdd 20 on 100, sayTHATISALLI have nothing more to addFERTILIZEAdd nutrients toANNOTATESAdds comments toANNEXRICEAdd on a Houston university?REGISTRARPERSON WHO MIGHT HELP YOU ADD MUSICUPTHEANTEPotentially add cost, as in negotiationsMAKESENSEAdd upSQUEEZEINAdd to a busy schedulePAGINATESAdds foliosCALCULATEAdd or divideSURCHARGEBill add-onBASICRATEWhat add-ons are added onto [1-3, 8-9]INCREASESAdds.ROUNDSOFFAdds finishing touches.SUMMARILYIt adds up, Tom said ___INCREASESAdds toJUSTSAYINOpinion add-onONBALANCEIf you add up the pros and consEXTENSIONFile name add-onROOMTAXESHotel bill add-onsEMBROIDERAdd exaggerated details toADDRecipe instructionADDDo some carrying, maybe