Fish looks right in the light (5)
I believe the answer is:
bream
'fish looks' is the definition.
'bream' can be an answer for 'fish' (I've seen this before). I am not certain of the 'looks' bit.
'right in the light' is the wordplay.
'right' becomes 'r' (common abbreviation).
'in the' means one lot of letters goes inside another.
'light' becomes 'beam' (beam is a kind of light).
'r' placed within 'beam' is 'BREAM'.
Can you help me to learn more?
(Other definitions for bream that I've seen before include "Amber kind of fish" , "Swimmer" , "Fish found in amber" , "Fish of the carp family" , "River fish" .)