
1) Act on
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https://www.crosswordclues.com/clue/gambeson

1) Medieval armour
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https://www.crosswordclues.com/clue/gambeson

A gambeson (or aketon or padded jack or arming doublet) is a padded defensive jacket, worn as armour separately, or combined with mail or plate armour. Gambesons were produced with a sewing technique called quilting. Usually constructed of linen or wool, the stuffing varied, and could be for example scrap cloth or horse hair. During the 14th centu...
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http://en.wikipedia.org/wiki/Gambeson

ancient leather or quilted coat worn as armour
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http://phrontistery.info/g.html

• (n.) Same as Gambison.
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http://thinkexist.com/dictionary/meaning/gambeson/

A loose shirt worn under the mail hauberk in the thirteenth century, and in the beginning of the fourteenth. Later it was replaced by the houqueton/aketon.
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http://web.ceu.hu/medstud/manual/SRM/gloss.htm

(from the article `military technology`) ...closer-fitting, extending downward from the middle of the upper arm to the wrist; at the same time, the hem of the byrnie dropped from just above ...
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http://www.britannica.com/eb/a-z/g/6
Gam'be·son noun Same as
Gambison .
Found on
http://www.encyclo.co.uk/webster/G/6

A gambeson or gipon was a quilted and padded or stuffed leather or cloth garment worn under chain mail in the Middle Ages. The Christian crusaders wore a parti-coloured gambeson. Later the gambeson was worn as a type of doublet by men and women.
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http://www.probertencyclopaedia.com/browse/PG.HTM

also Gambais, Gambaisel, Gambaison, Gamboison, Gambison. padded garment worn beneath mail hauberk, probably sleeveless, possibly from Byzantine.
Found on
http://www.umich.edu/~marcons/Crusades/topics/war/Glossary.html
No exact match found.