All right at start of cruise, for example, to go round the Lizard? (5)
I believe the answer is:
gecko
'the lizard?' is the definition.
(gecko is a kind of lizard)
'all right at start of cruise for example to go round' is the wordplay.
'all right' becomes 'ok' ('ok' can be a synonym of 'all right').
'at start of' indicates taking the first letters (I've seen 'at start' mean this).
'for example' becomes 'eg' ('e.g.' can be a synonym of 'for example').
'to go round' shows that the letters should be reversed in order (I've seen 'going round' mean this).
The initial letter of 'cruise' is 'c'.
'ok'+'c'+'eg'='okceg'
'okceg' backwards is 'GECKO'.
(Other definitions for gecko that I've seen before include "Lizard than can't blink" , "Reptile" , "Small tropical lizard" , "Type of lizard" , "Display" .)