Possible Clues:

• Very much
• In a big way
• Much later astray in empty galaxy
• Much
• At length, interrupting Earl and PM in a major way
• Gary felt funny -- not fine or very well
• Very much at large in drab clothing
• To a large extent, at fifty in a grey setting
• Very grey at fifty, having been through it
• Colour worn by Attila, oddly, to a considerable extent