This is not really an answer but it may help you. There is a website called www.oneacross.com and if you put in the clue and the letters that you have, (you can use question marks for the ones you don't know) it will show you the possibilities. Good Luck!
georgians
geraniums
gerardias
germanies
gesturers
ghanaians
giantisms
giddiness
gigabytes
gigawatts
gimcracks
girasoles
girlhoods
giveaways
glaciates
gladiolas
gladiolus
glamorous
glassfuls
glassines
glaucomas
gleanings
glimpsers
glissades
gloamings
globulins
gloomings
glorifies
glottides
glottises
glowflies
glowworms
gloxinias
glutinous
glycerins
glycerols
glyceryls
glycogens
glycosyls
goalposts
goatherds
goatskins
goddesses
godliness
golcondas
golgothas
golliwogs
gombroons
gonfalons
gonocytes
gonopores
goodwills
goodwives
goofballs
goofiness
gospelers
gossamers
gossipers
goulashes
gourmands
goutiness
governess
governors
graceless
graciosos
gradients
graduands
graduates
graecizes
graftages
grampuses
granaries
grandames
granddads
grandeurs
grandness
grandsirs
grandsons
graperies
graphemes
graphites
grapplers
gratifies
graveless
graveness
gravities
gravitons
graybacks
graylings
greatness
greenings
greenness
greetings
gridirons
grillades
grillages
grimacers
griminess
grindings
grizzlers
grizzlies
groceries
grogshops
grosbeaks
grossness
grounders
groupings
grovelers
grubworms
gruelings
gruellers
gruffness
grumblers
guaranies
guardants
guardians
guerillas
guernseys
guidances
guileless
guiltless
gumptions
gunfights
gunmetals
gunneries
gunpapers
gunpoints
gunsmiths
gunstocks
gutturals
gymkhanas
gypsydoms
gypsyisms
gyrations
If you remove the letter "S" from the list you are still left with a word. Stumbling. Screaming. Swaddling. Slighting. Straining. Selecting. Smooching. Strapping. Squashing. Sprinting. Stripping. Switching. And lastly Scrapping.
there are many words that are 9 letter starts with (s) and end with (a) according to a program called "crossword solver" and these are some of the results:
scintilla
seborrhea
signorina
supernova
startling
starting
staring
string
sting
sing
sin
in
I
TA DA!
digress
interfere
Oedipal
The word is rodents.
Whistle
Evolves, evolved
private
shifted
transom
startle
Umm, how about "shuttle"?blotterbrittlebladderchatterclattercheddarchoppedcritterdribbleflutterflatterflipperplatterplannerscannerscattershimmershippedshoppedshutterskimmerslimmerslipperslappedslippedsloppedsmittenspinnerspotterstopperstepperstammerstutterswimmertrimmer
Requiem?
Amassed
garbage