Cyclin', one gear for the beach? (6)
I believe the answer is:
bikini
'for the beach?' is the definition.
(I've seen this before)
'cyclin' one' is the wordplay.
'cyclin'' becomes 'bikin'' ('biking' pronounced like 'cycling' was; 'bike' can be a synonym of 'cycle').
'one' becomes 'i' (Roman numeral).
'bikin'+'i'='BIKINI'
'gear' is the link.
This may not be right. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for bikini that I've seen before include "Skimpy two-piece swimsuit" , "Dress" , "Pacific atoll, used for US nuclear weapons tests" , "Minuscule bathing costume for woman" , "Brief bathing costume" .)