In Broken Bay? March in some light cotton fabric? (8)
I believe the answer is:
chambray
'some light cotton fabric?' is the definition.
'chambray' can be an answer for 'fabric?' (chambray is a kind of fabric). I'm unsure of the 'some light cotton' bit.
'in broken bay? march' is the wordplay.
'in broken' is an anagram indicator (I've seen this in other clues).
'bay'+'march'='baymarch'
'baymarch' is an anagram of 'CHAMBRAY'.
'in' acts as a link.
Can you help me to learn more?
(Another definition for chambray that I've seen is " Mary Bach makes a lightweight woven fabric".)