Support oarsman in style (10)
I believe the answer is:
backstroke
'support oarsman in style' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'support oarsman' is the wordplay.
'support' becomes 'back' (to back is to support or endorse).
'oarsman' becomes 'stroke' (I've seen this before).
'back'+'stroke'='BACKSTROKE'
Can you help me to learn more?
(Other definitions for backstroke that I've seen before include "action?" , "Way to move through water looking upwards" , "Swimming style" .)