Answer:

SOLIDER

AnswerCrossword Clue
SOLIDERMore compact
SOLIDERMore financially sound
SOLIDERStabler.
SOLIDERMore substantial.
SOLIDEROn a firmer foundation.
SOLIDERFirmer.
SOLIDERMore compact.
SOLIDERMore firm.
SOLIDERMore meaty.
SOLIDERLess likely to break
SOLIDERMore substantial
SOLIDERNot so tenuous
SOLIDERMore reliable