Solutions Big book has 6 entries with similar clues

• 5-letter words
• tomesBig books
• kohlsBig name in big-box stores
• 6-letter words
• cheese"Big ...," song by Nirvana from their album "Bleach" ... or word said by a photographer for a big smile
• 8-letter words
• emoticonOne big book reversed trick, perhaps :)
• 10-letter words
• scopecreepTendency for projects to become bigger and bigger
• 39-letter words
• isbn-international-standard-book-numberA number assigned to a newly published book in keeping with an international book classification system