Move towards chap swimming round Malay boat (8)
I believe the answer is:
approach
'move towards' is the definition.
(I've seen this before)
'chap swimming round malay boat' is the wordplay.
'swimming' is an anagram indicator.
'round' is an insertion indicator.
'malay boat' becomes 'proa' (I've seen this before).
'chap' is an anagram of 'apch'.
'apch' placed around 'proa' is 'APPROACH'.
(Other definitions for approach that I've seen before include "Drae near" , "Resemble" , "Avenue" , "Get closer to" , "Draw near or nearer to" .)